What is the primary function of Port Address Translation (PAT)?

To map multiple private IP addresses onto a single public IP address

What is the purpose of a Business Impact Analysis (BIA) in continuity planning?

To identify risk disruption for primary business functions

What does the TIA/EIA cabling standard require for fiber patch cord polarity?

An odd number of elements in the link

What is the MOST effective method for protecting the management interface of a SOHO router?

Configuring a strong administrative account passphrase

How does IPv6 handle packet fragmentation differently from IPv4?

IPv6 requires the host to perform path MTU discovery.

At layer 4 of the OSI model, how is each application identified to facilitate proper routing and delivery of data?

By a unique port number assigned to the application

How is a connection uniquely identified in a TCP/IP network?

By combining server port & IP address and client port & IP address

What is a primary function of a Power Distribution Unit (PDU) in a data center?

To distribute power to multiple devices in a rack

What is a characteristic feature of UltraPhysical Contact (UPC) finishing type for fiber optic connectors?

Polished to a higher standard than PC, reducing back reflection

When installing structured cabling, why is it important to leave a service loop at both ends of the cable run?

To provide extra cable length for future reconnections or changes

You want to ensure that all data transmitted between your website and your customers is encrypted.

Obtain and install a digital certificate.

What is the purpose of the STARTTLS command in SMTP?

To upgrade an existing unsecure connection to use TLS

What are the advantages of replacing all hubs with switches?

Replace all existing hubs with switches to reduce collision domains.

If a router has two routes to the same destination with identical prefix lengths, how does it choose the best route?

By choosing the route with the lowest metric

What does Recovery Time Objective (RTO) measure in disaster recovery planning?

The time following a disaster within which a system must be restored

What is the role of the Gateway/next hop parameter in a routing table?

It shows next router or gateway along the path to the destination.

What does ingress and egress traffic filtering refer to?

Controlling both inbound and outbound network traffic

What type of information does a root DNS server contain?

Complete information about top-level domain servers

What is the primary purpose of twisting the pairs in an unshielded twisted pair (UTP) cable?

To reduce external interference and crosstalk

What is the primary purpose of trunking in a network?

To interconnect multiple switches and build the network fabric

Describe the use of ARP messaging in network communication?

ARP messaging is exclusively used with Ethernet to resolve IPv4 to MAC

What is the purpose of using TLS transport encryption in databases?

To secure data transmission over the network

What is the significance of conducting validation tests in disaster recovery?

To ensure services can be restored

Which of the following statements correctly describes the wiring configuration for T568A termination?

The green pair is wired to pins 1 and 2.

Which of the following functions are NOT performed by the OSI Transport layer?

Path identification and selection

What is the main advantage of Precision Time Protocol (PTP) over Network Time Protocol (NTP)?

PTP provides nanosecond precision.

What is the purpose of using jumbo frames?

To increase the maximum transmission unit (MTU) for efficiency

What does flipping the 7th bit of the first octet in a MAC address to form an EUI-64 address accomplish?

It differentiates the modified address from the original MAC address

What is a virtual IP in the context of high availability clusters?

A shared address used to access the service provided by the cluster.

What is the effect of a poison route in distance vector routing protocols?

Advertises a unreachable route with hop count of 16.

What is a Protocol Data Unit (PDU)?

A chunk of data with protocol-specific headers added at each OSI layer

What role does the Spanning Tree Protocol (STP) play in preventing network loops?

It automatically shuts down redundant paths to prevent loops.

How can you identify machines with duplicate IP addresses?

Using ping and then arp -a to examine the ARP cache tab

How are communications between VLANs facilitated?

Through an IP router or layer 3 capable switch

What does the Start of Authority (SOA) record identify?

The primary authoritative name server for the zone

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Network Plus Modules 1-7

141 termsStudBud Administration16 plays

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Questions 141

Answers

1
What is the primary function of Port Address Translation (PAT)?
To map multiple private IP addresses onto a single public IP address
To block unwanted traffic from the Internet
To allocate a unique public IP address to each internal host
To encrypt data packets for secure transmission over the Internet
2
What is the purpose of a Business Impact Analysis (BIA) in continuity planning?
To assess the impact of new hires on the business
To identify risk disruption for primary business functions
To evaluate the effectiveness of sales strategies
To identify the most profitable business areas
3
What does the TIA/EIA cabling standard require for fiber patch cord polarity?
A direct connection without the use of patch cords
An odd number of elements in the link
No requirement for crossover in the link elements
An even number of elements in the link
4
Which frame contains STP information about switch ports that allow switches to exchange information?
DPs
Bus
BPDU
Lowest ID
5
Which type of laser is typically used with single mode fiber transceivers?
Incandescent bulbs
VCSEL
Laser diodes
LED
6
What is the maximum size of the data payload in a standard Ethernet frame?
1518 bytes
1500 byte
9018 bytes
18 bytes
7
What is the MOST effective method for protecting the management interface of a SOHO router?
Disabling the firewall
Enabling UPnP (Universal Plug and Play)
Setting the router to automatically accept firmware updates
Configuring a strong administrative account passphrase
8
How does IPv6 handle packet fragmentation differently from IPv4?
IPv6 uses a different header field for fragmentation management.
IPv6 requires the host to perform path MTU discovery.
IPv6 increases the MTU to avoid fragmentation.
IPv6 allows routers to perform fragmentation.
9
At layer 4 of the OSI model, how is each application identified to facilitate proper routing and delivery of data?
By a unique port number assigned to the application
By the MAC address of the destination device
Through the use of encryption algorithms
Through the application's unique username and password
10
What can cause convergence problems in a dynamic routing network?
Consistent routing information across all routers
A stable network with no changes
The use of static routing protocols
A flapping interface
11
How is a connection uniquely identified in a TCP/IP network?
By combining server port & IP address and client port & IP address
By the MAC addresses of the communicating devices
By the client port and IP address only
By the server port and IP address only
12
What is the primary purpose of the dig command-line tool?
To query DNS servers
To manage BIND DNS server configurations
To configure DNS servers
To monitor network traffic
13
What is a primary function of a Power Distribution Unit (PDU) in a data center?
To decrease the voltage supplied to each rack
To distribute power to multiple devices in a rack
To convert AC power to DC power for server use
To provide a wireless power supply to servers
14
What is a characteristic feature of UltraPhysical Contact (UPC) finishing type for fiber optic connectors?
Polished at an angle to minimize back reflection.
Do not require polishing as they use a basic contact finish
Have a matte finish to enhance signal transmission
Polished to a higher standard than PC, reducing back reflection
15
When installing structured cabling, why is it important to leave a service loop at both ends of the cable run?
To make the installation look more professional and organized
To provide extra cable length for future reconnections or changes
To ensure that the cable can be easily pulled out for recycling
To increase the tension on the cable, ensuring a tighter fit
16
At which layer of the OSI model does a hub operate?
Application Layer
Physical Layer
Data Link Layer
Network Layer
17
Which command is used to designate a switch as the primary root bridge in Spanning Tree Protocol?
spanning-tree set root
spanning-tree primary root
spanning-tree root set primary
spanning-tree root primary
18
Which version of SMB supports message encryption?
SMB3
SMB1
SMB2
All versions
19
You want to ensure that all data transmitted between your website and your customers is encrypted.
Increase your website's bandwidth.
Obtain and install a digital certificate.
Implement a CAPTCHA system on your website.
Install a web analytics tool.
20
Which protocol uses Transport Layer Security (TLS) to secure DNS queries?
DNS over DoT
DNS over SSL (DoS)
Secure DNS (SDNS)
DNS over HTTPS (DoH)
21
What is the purpose of the STARTTLS command in SMTP?
To create a new email account
To upgrade an existing unsecure connection to use TLS
To downgrade the connection to an unsecure state
To encrypt the entire email message content
22
What are the advantages of replacing all hubs with switches?
Replace all existing hubs with switches to reduce collision domains.
Extend the fiber optic backbone to each new workstation.
Use fiber optic cables for all new horizontal links
Implement autonegotiation on all network devices
23
Organizations that created categories of cable standards for twisted pair to ensure suitable quality cable?
ISO and IEC
ITU and ETSI
IEEE and IETF
ANSI and TIA/EIA
24
If a router has two routes to the same destination with identical prefix lengths, how does it choose the best route?
By selecting the route with the largest packet size
By choosing the route with the lowest metric
By using the Administrative Distance (AD) value
By preferring the route with the shortest prefix
25
What does Recovery Time Objective (RTO) measure in disaster recovery planning?
The time following a disaster within which a system must be restored
The amount of time needed to perform system maintenance
The time it takes to detect a system failure
The maximum amount of data loss that is acceptable
26
What is the role of the Gateway/next hop parameter in a routing table?
It determines the speed at which the packet is forwarded.
It shows next router or gateway along the path to the destination.
It identifies the router's physical location.
It specifies the final destination of the packet.
27
What does ingress and egress traffic filtering refer to?
Monitoring internet usage and bandwidth
Encrypting data entering and leaving a network
Filtering both internal and external emails
Controlling both inbound and outbound network traffic
28
What type of information does a root DNS server contain?
Complete information about top-level domain servers
Only information about country code domains
Complete information about all domains
Only information about second-level domains
29
What is the primary purpose of twisting the pairs in an unshielded twisted pair (UTP) cable?
To make the cable more flexible
To color-code the cable for easier identification
To reduce external interference and crosstalk
To increase the cable's thickness
30
What is the primary purpose of trunking in a network?
To replace wireless connections with wired connections
To interconnect multiple switches and build the network fabric
To connect a computer to the Internet
To increase the security of the network
31
Command to show active routing table: including details like destination, gateway, & source of the route?
route print
show ar
ip route show
show route
32
Describe the use of ARP messaging in network communication?
ARP messaging is exclusively used with Ethernet to resolve IPv4 to MAC
ARP messaging is a protocol used to encrypt data packets
ARP messaging can be used Bluetooth to resolve Domain Names to IP
ARP messaging is used with Wi-Fi to resolve IP addresses to MAC
33
What is the purpose of using TLS transport encryption in databases?
To increase data storage capacity
To synchronize data between servers
To secure data transmission over the network
To improve the graphical user interface
34
What is the significance of conducting validation tests in disaster recovery?
To assess the effectiveness of marketing strategies
To evaluate the company's financial health
To ensure services can be restored
To increase the company's market share
35
Which of the following is a typical use of twinaxial cables?
Outdoor lighting systems
Data center interconnects
Automotive audio systems
Residential telephone wiring
36
What is the purpose of using a hot aisle/cold aisle layout in a data center?
To increase the density of servers in a rack
To maximize cooling efficiency
To enhance physical security of the servers
To simplify cable management
37
Which of the following statements correctly describes the wiring configuration for T568A termination?
The green pair is wired to pins 1 and 2.
The blue pair is wired to pins 3 and 6.
The brown pair is wired to pins 3 and 6.
The orange pair is wired to pins 1 and 2.
38
Which of the following functions are NOT performed by the OSI Transport layer?
Path identification and selection
Data Segmentation and reassembly
End-to-end flow control
Reliable message delivery
39
What is the main advantage of Precision Time Protocol (PTP) over Network Time Protocol (NTP)?
PTP uses less network bandwidth.
PTP provides nanosecond precision.
PTP supports more network services
PTP is easier to implement.
40
In a Windows environment, which protocol is typically used to access Microsoft Exchange mailboxes?
MAPI
HTTPS
SMTP
IMAP
41
What is the purpose of using jumbo frames?
To support a data payload of exactly 1518 bytes
To eliminate the need for error checking
To decrease the size of the Ethernet frame header
To increase the maximum transmission unit (MTU) for efficiency
42
What does flipping the 7th bit of the first octet in a MAC address to form an EUI-64 address accomplish?
It indicates that the address is multicast.
It signifies that the address is now private.
It differentiates the modified address from the original MAC address
It converts the address to a link-local address
43
What is a virtual IP in the context of high availability clusters?
A shared address used to access the service provided by the cluster.
The private IP address used for the management of cluster nodes.
An IP address used exclusively for load balancing.
A unique IP address assigned to each node in the cluster.
44
Which IPv6 autoconfiguration method allows a host to generate a link-local address and verify its uniqueness?
Manual configuration
DHCPv6
ARP
SLAAC
45
What is the effect of a poison route in distance vector routing protocols?
Advertises a unreachable route with hop count of 16.
Decreases the hop count to 0 for directly connected network
It increases the hop count to the maximum to speed up convergence.
Advertises a reachable route with hop count of 16.
46
What type of cable is used to complete the link from the wall port to (NIC) and from the patch panel to the switch
Fiber patch cable
Coaxial cable
Twisted pair cable
HDMI cable
47
What is a Protocol Data Unit (PDU)?
A measure of data transmission speed
A device that manages data transmission rates
A type of encryption used in data transmission
A chunk of data with protocol-specific headers added at each OSI layer
48
What role does the Spanning Tree Protocol (STP) play in preventing network loops?
It automatically shuts down redundant paths to prevent loops.
It assigns IP addresses to devices on the network.
It encrypts data packets to secure network traffic
It directly increases the speed of network traffic.
49
How can you identify machines with duplicate IP addresses?
Assigning new IP addresses to all devices on the network
Checking the physical connections of all network devices
Using ping and then arp -a to examine the ARP cache tab
By restarting the router
50
How are communications between VLANs facilitated?
By configuring VLANs with the same ID
Through a network firewall
Through direct connection
Through an IP router or layer 3 capable switch
51
What does the Start of Authority (SOA) record identify?
The primary authoritative name server for the zone
The secondary name servers in the zone
The dynamic resource records in the zone
The most frequently visited domain in the zone
52
Cable type to run in a false ceiling that holds the lights and provides an air path for heating and air conditioning.
STP cables
Fiber optic cables
Plenum-rated cable
Cat 5e or Cat 6a cables
53
Which of the following is true about single-mode fiber optic network cabling?
It's less expensive than multi-mode fiber
It's optimized for 850 nm and 1300 nm light sources.
It has shorter segment lengths than multi-mode fiber
Central core is smaller than the standard multi-mode fiber optic.
54
Which statement BEST describes the use of port numbers in TCP/IP networking?
Port numbers to identify the physical location of devices on a network.
Port numbers are optional and rarely used in modern networking.
Port numbers & IP addresses to direct packets to services/apps
Port numbers for encrypting network communications.
55
What is the principal difference between link state and distance vector protocols?
Link state allow each node a copy of the complete network topology.
Distance vector protocols use a shortest path first algorithm
Link state rely on directly connected neighbors for info on remote networks
Distance vector allow each node to a copy of the complete topology.
56
Which set correctly represents the possible values that can be represented by each digit in hexadecimal notation?
1 through 10
0 through 9 and A through F
0 through 7
0 through 9 and A through E
57
What role does a grandmaster clock play in a PTP domain?
It acts as the primary backup time source.
It serves as the primary network router
It is the authoritative time source.
It synchronizes directly with satellite clocks.
58
What is the primary purpose of link aggregation/NIC teaming?
To increase the cost of network infrastructure
To decrease the network speed
To replace wireless connections with wired connections
To combine multiple network connections into a single logical connection
59
How does IPv6 anycast addressing differ from multicast addressing?
Multicast uses a special range of addresses for routing protocols
Anycast packets can to be sent from many sources to a single interface.
Anycast uses a single address for multiple interfaces globally.
Multicast sends a packet from a single source to a single interface.
60
What is the primary difference between tagged and untagged ports regarding VLAN tags?
Tagged ports add a VLAN tag to all outgoing frames
Untagged ports can transport traffic for multiple VLANs.
Untagged ports don't add/remove VLAN tags from frames within same VLAN
Tagged ports strip VLAN tags from incoming frames
61
What is the classic naming scheme for Ethernet interfaces in Linux?
wlan0, wlan1, wlan2
en0, en1, en2
wlan0, wlan1, wlan2
eth0, eth1, eth2
62
How do VoIP phones use VLAN tagging?
To disable all data traffic except for VoIP communication
To prioritize video traffic over voice traffic
To ensure SIP control & RTP are segregated from normal data traffic
To ensure that voice & data traffic are combined on the same network
63
What is the decimal form of the following binary IP address? 11001101.00111001.10101001.01000010
190.42.154.51
206.58.170.67
238.90.202.99
205.57.169.66
64
Which of the following is NOT a component of the 18-byte header in a standard Ethernet frame?
Destination MAC address
Error checking field
Payload size indicator
Source MAC address
65
What is a significant difference between a TDM PBX and a VoIP PBX?
TDM PBX is vendor-specific hardware & a VoIP PBX can be software
A TDM PBX uses the Internet for all calls, while a VoIP PBX uses the PSTN
A TDM PBX can only support voice mail, while a VoIP PBX cannot.
VoIP PBX needs a separate data channel for each call & a TDM PBX doesn't
66
What is the primary function of blanking plates in a rack system?
To enhance the aesthetic appearance of the rack
To increase the rack's weight capacity
To provide additional support to the equipment
To improve airflow
67
What role does a resolver play in DNS?
It separates internal from external DNS zones
It performs recursive queries in response to client requests.
It hosts zone records for internal and external domains.
It supplies false name resolutions to clients.
68
Difference between unicast and broadcast addressing?
Unicast requires a router & broadcast doesn't
Unicast uses s ff:ff:ff:ff:ff:ff & broadcast uses 1 MAC
Unicast address sends data to all & broadcast addressing send data to one
Unicast sends to 1 & broadcast sends data to all
69
What does TCP use to divide data from the Application layer?
Packets
Frames
Bits
Segments
70
What is the primary purpose of data encapsulation in network protocols?
To convert data into an analog signal for transmission
To encrypt data for secure transmission
To add additional data headers for routing and delivery
To compress data for faster transmission
71
In the OSI model, what is the primary function of the Network layer?
To encode & convert data into signals for transmission over the wire.
To move data around an internetwork using logical network and host IDs
To ensure reliable transmission of data across a physical link.
To establish, manage & terminate connections between different hosts.
72
What is the function of duplex fiber deployment?
It implements multiple channels distinguished by wavelengths
It uses two strands for transmit (Tx) and receive (Rx).
It uses a single strand for both transmit and receive.
It uses multiple strands to implement Tx and Rx channels.
73
2 IEEE standards are initially defined for Power over Ethernet (PoE) and later combined into the 802.3-2018 standard?
802.3af and 802.3at
802.11ac and 802.11n
802.1Q and 802.1p
802.3z and 802.3ab
74
What are the requirements for horizontal cabling in a structured cabling scheme?
Can on by installed in wall ducts & must use fiber optic cable only
90m cabling distance & must use fiber optic cable only
Connect users to MDF & 90m cabling distance
Must use fiber optic cable only & Can on by installed in wall ducts
75
What is the primary role of an edge router in a network?
To connect internal networks to external networks
To manage internal network traffic only
To provide Wi-Fi connectivity to internal users
To serve as the main firewall for the network
76
What is the purpose of the T1 timer in DHCP?
To define the maximum lease time for an IP address
To indicate the expiration time of an IP address lease
To set the frequency of DHCP server updates
To signal when a client should start attempting to renew its lease
77
Which of the following are NOT the purposes of entrance facilities in a structured cabling scheme?
Point where external cabling joins internal cabling
for Interbuilding communications
To house the building's wireless networking equipment exclusively
To join the local exchange carrier (LEC)'s network
78
What is a likely cause of duplicate MAC addresses on a network?
Use of locally administered addressing
A malfunctioning DHCP server
A faulty network cable
Incorrect subnet mask configuration
79
What does the term "stateless protocol" imply about HTTP?
The server stores data in a centralized database for all requests
The server requires authentication for every request
The server retains information about client requests indefinitely.
Each request from a client to a server is treated as a new request.
80
Which type of conductor wire is typically used for cables that run behind walls or through ducts?
Fiber optic
Stranded
Coaxial
Solid
81
Select a network design where each computer acts as both a client and a server.
Peer-to-Peer network
Virtual Private network
Client-Server network
Enterprise network
82
What is the function of the Protocol field in the IPv4 header?
Indicates the version of Internet Protocol in use
Indicates the size of the header
Specifies the total packet size
Specifies the type of data encapsulated in the payload
83
What is the primary purpose of a Multi-Source Agreement (MSA) in the context of modular transceivers?
To standardize the size of transceivers
To decrease the cost of transceivers
To increase the data transmission speed of transceivers
To ensure compatibility between transceivers from different vendors
84
What does a stateful inspection firewall do that a stateless firewall does not?
Filters traffic based solely on IP addresses
Maintains information about the session established between two hosts
Encrypts data packets
Operates at Layer 2 of the OSI model
85
What is a runt frame error?
A frame larger than the maximum permissible size
A frame with no CRC errors
A frame that is smaller than the minimum size
A frame transmitted with high signal quality
86
Which of the following BEST describes a demarcation point in the context of telecommunications?
Point at which the telco's cabling enters the customer premises
Central hub where all ISPs connect and exchange data
Maximum data transfer rate achievable by the ISP
Used for encrypting data over the Internet
87
What domain is used for reverse DNS querying of IPv6 addresses?
ip6.arpa
in-addr.arpa
ipv6.arpa
reverse.ipv6
88
What command is used to enter the Global Configuration mode on a Cisco switch?
do copy running-config startup-config
interface GigabitEthernet0/1
configure terminal
enable
89
What happens when VLANs are configured on a switch?
The switch divides the network into multiple broadcast domains.
The switch can only support legacy network cards
The switch operates in half-duplex mode
The switch's performance is significantly reduced.
90
What is the purpose of the preamble and Start Frame Delimiter (SFD) in an Ethernet frame?
To specify the destination address of the frame
To perform error checking on the frame
To determine the type of protocol being used in the payload
Indicate start of frame & synchronize clocking between sender & receiver
91
Fiber optic connector type developed by AT&T known for its quick-connecting bayonet style.
Local Connector (LC)
Mechanical Transfer Registered Jack (MTRJ)
Straight Tip (ST)
Subscriber Connector (SC)
92
Which type of connectors do SFP transceivers use?
MPO
RJ-45
LC
SC
93
Why might a medium-sized network opt for a collapsed core model?
To increase the complexity of the network
To simplify the network by combining core and distribution layers
To decrease the scalability of the network
To implement traffic policies at the access layer
94
What does the TTL value in the ping command output indicate?
The packet's payload size
The encryption level of the packet
The number of hops it took for the packet to reach its destination
The speed of the network connection
95
What type of transmission is available with the contention-based MAC system utilized by Ethernet?
Full-duplex transmission
Half-duplex transmission
Multiplex transmission
Simplex transmission
96
Which of the following tables does a NAT router store port numbers and their associated private IP address mappings?
ARP table
MAC address table
Translation table
Routing table
97
What does the split horizon mechanism prevent in routing protocols?
The use of a default gateway
The propagation of routing loops through increased hop counts
Router from advertising a route back which it was learned
The configuration of static routes
98
What is the primary purpose of IPv6 link local addresses?
To enable communication in a single subnet without the need for a router
To encrypt data packets for secure communication
To provide global internet connectivity
To assign addresses for email servers
99
What does a blinking amber LED on a switch port signify?
The port is blocked by the spanning tree algorithm.
A fault has been detected.
The link is operating normally with traffic.
The link is connected but there is no traffic
100
What is the role of an Access Control List (ACL) at Layer 3 (Network layer) of the OSI model?
To filter network traffic by permitting/blocking packets
To serve as a list of permissions for file access
To act as a routing protocol
To define the maximum size for packets
101
Which of the following interfaces does a SOHO router provide at the Physical Layer of the OSI model?
USB ports, HDMI ports for multimedia streaming and Radio Antennas
SATA ports for storage , RJ-45 for Local Cabled Network and HDMI ports
VGA Ports, WAN Port for ISP and HDMI ports for multimedia streaming
Radio Antennas, WAN Port for ISP and RJ-45 for Local Cabled Network
102
What distinguishes a collision domain from a broadcast domain?
Broadcast domains require a layer 2 broadcast address to be established.
Collision domains are shared media & their borders are made by switches
Collision domains can span multiple routers
Collision domains are established by routers
103
Which nslookup command would you use to verify the mail servers configured for your public domain example.com.
nslookup -type=ns example.com
nslookup -type=a example.com
nslookup -type=mx example.com
nslookup example.com
104
Network data transfer works by modulating the properties of a transmission medium to encode a signal. In other words...
Method of securing network data by encrypting it
Converts digital signals into analog signals for transmission over POTS
Physical infrastructure, such as cables and switches, used to transmit data
Transmission of signals as electric current, infrared light, or radio waves
105
Which of the following are typical uses of RG-59 coax cable?
In-vehicle networking & Long-distance telecommunication
Long-distance telecommunication & In-vehicle networking
Closed circuit TV (CCTV) & Audio/video applications
Audio/video applications & In-vehicle networking
106
Which of the following best describes packet filtering firewalls?
They inspect the headers of IP packets and filter based on rules.
They only filter outgoing traffic from a network.
They inspect the content of each data packet.
They encrypt each data packet.
107
Which process allows hosts using private IP addresses to access the Internet?
Network Address Translation (NAT)
Dynamic Host Configuration Protocol (DHCP)
Domain Name System (DNS)
Internet Protocol Security (IPsec)
108
What is the purpose of the hello messaging in EIGRP?
To encrypt data packets
To transmit routing updates
To confirm connectivity with its neighbors
To assign IP addresses to routers
109
Which fiber optic connector is known for its small form factor and is widely adopted for Gigabit Ethernet and 10/40 GbE?
Straight Tip (ST)
Mini-MT
Subscriber Connector (SC)
Local Connector (LC)
110
What role does the Presentation layer of the OSI model play in terms of data compression and encryption?
Involved in the logical organization of data into frames for transmission
Handles the routing of data between different networks
Supports data compression & encryption to send data to the network
Responsible for physical encryption of data using hardware-based methods
111
Which of the following best describes 10BASE-T network cabling?
Speed of 1 Gbps, uses baseband signal transmission & runs over coaxial
Speed of 100 Mbps, uses broadband signal & utilizes fiber optic
Speed of 10 Mbps, uses a baseband signal & runs over twisted pair
Speed of (10G), uses a broadband signal & is wireless
112
Command a technician should use to clear the current IP address so that a new one can be assigned?
ipconfig /release
ipconfig /all
ipconfig /flushdns
ipconfig /renew
113
What is it called when a system's clock begins to be off by a few seconds or even minutes?
Slam
Time drift
Dispersion
Slew
114
What is used to connect a port on a patch panel to another network port?
HDMI cable
Power line
RJ-45 patch cord
Fiber optic cable
115
Role of Router Advertisements (RAs) in the IPv6 address configuration process?
To encrypt data packets sent between hosts and routers
To request an IP address from a DHCPv6 server
To assign static IP addresses to devices
To inform hosts of network prefixes and autoconfiguration options
116
Which of the following networking terms refers to the nodes that send and receive data traffic?
Intermediate nodes
Network protocols
Network links
End systems
117
Which of the following can you use to create a virtual LAN?
Gateway
Hub
Router
Switch
118
What makes a router RFC 1542 compliant?
The function to block all broadcast traffic
The feature to encrypt DHCP messages
The ability to assign static IP addresses
The capability to forward DHCP traffic between subnets
119
What is a major difference when comparing Dense Wavelength Division Multiplexing (DWDM) to CWDM?
DWDM has greater numbers of channels & much less spacing between channels.
DWDM is typically used for shorter distance transmissions than CWDM.
DWDM requires less precise lasers than CWDM.
DWDM supports fewer channels than CWDM
120
What can dynamic routing protocols allow routers to do?
Encrypt data packets for secure transmission.
Assign IP addresses dynamically.
Share information about known networks and possible paths.
Increase the speed of packet delivery.
121
What is the first step in the DHCP lease process?
DHCPDISCOVER
DHCPACK
DHCPOFFER
DHCPREQUEST
122
What should you suspect if you cannot ping a local host and the error is "destination unreachable"?
The network protocol stack needs to be reinstalled
Incorrect IP address or netmask in the IP configuration
The default gateway parameter on the local host is incorrect
ICMP is blocked by a firewall or other security software
123
What is the primary purpose of a network mask (netmask) in IPv4 addressing?
To distinguish between the network ID and the host ID within an IP address
To encrypt the IP address for security purposes
To increase the speed of network packet delivery
To identify the device's hardware address
124
Which TCP flag is set by the client to initiate the three-way handshake?
ACK
SYN
RST
FIN
125
What type of cabling do most Ethernet adapters designed for use with copper cabling now support?
Coaxial cable
USB cable
HDMI cable
Gigabit Ethernet
126
What does an interface "flap" indicate?
A stable network connection
A low number of CRC error
High-quality cable and termination
An interface switching between up and down states
127
What happens if both sides of a link aggregation are set to passive mode?
The physical links are disabled
A bonded channel is created with reduced bandwidth
No bonded channel is created.
A bonded channel is created with increased latency
128
Purpose of using the show mac address-table command
To reset the MAC address table on the switch
To identify the MAC addresses associated with a particular switch port
To list the IP addresses assigned to all devices on the network
To display the routing table of a switch
129
What is established between a server and a client after successful authentication with TLS?
An encrypted tunnel
A public network
A data compression protocol
A direct physical connection
130
Which tool is used to terminate fixed cable by fixing conductors into an IDC?
Punch down tool
Cable crimper
Wire stripper
Cable tester
131
What advantage does a stackable switch offer over a non-stackable switch?
It offers fewer port
It allows multiple switches to be managed as a single unit.
It allows for physical stacking only
It cannot be managed as a single unit.
132
What does the client do to ensure the offered IP address is not already in use?
Sends a DHCPDISCOVER packet
Sends a DHCPOFFER packet
Sends a DHCPREQUEST packet
Broadcasts an ARP message
133
Which networking topology connects each network device to a central forwarding appliance?
Mesh
Ring
Bus
Star
134
In the context of FTP over Explicit TLS (FTPES), which command is used to encrypt the data connection?
PASV
PROT
SSH
AUTH TLS
135
Which Neighbor Discovery Protocol function lets a router tell a host of a better route to a destination in an IPv6?
Prefix discovery
Address autoconfiguration
Local address resolution
Redirection
136
Which of the following is a unique identifier for each Ethernet network interface port?
Model number
Serial number
MAC address
IP address
137
Which of the following statements accurately describes the function of the Session layer (layer 5) in the OSI model?
Establishes, manages, and terminates dialog between client and server
It's responsible for routing packets across different networks
Provides the physical transmission of data over network media
Provides character set conversion, such as between ASCII and Unicode
138
What do ISPs use to establish links between their networks within an Internet eXchange Point (IXP) data center?
Transit and peering arrangements
NFC (Near Field Communication)
Bluetooth connectivity
Peer-to-peer file sharing
139
What might cause a host to send a reset (RST) segment during a TCP session?
The host wishes to establish a new TCP connection.
The host receives an ACK for an unexpected segment.
The host decides to abruptly end the session.
The host receives a segment out of order.
140
Which of the following functions does a SOHO router implement at layer 2 to make use of its Physical layer adapters?
Ethernet switch & Wireless access point
Ethernet switch & DHCP server
Network Address Translation (NAT) & Ethernet switch
Firewall & Wireless access point
141
Which of the following is a unique identifier used by SIP endpoints?
IP address
DNS name
MAC address
SIP URI

Network Plus Modules 1-7 Flashcards | StudBud