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CCNA-1 Exam Prep Flashcards | StudBud
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CCNA-1 Exam Prep
CCNA-1 Exam Prep
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SGT Nelson's Exam Prep for CCNA1
Flashcards
50 cards
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Practice quiz
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Questions
50
Answers
1
What type of malware could cause slow network performance due to a third-party scanning program installed by a user?
Self-replicating malicious software that spreads across networks (worm).
Malicious software that replicates and infects other files (virus).
Deceptive attempts to obtain sensitive information (phishing).
Unsolicited messages (spam)
2
When a server receives a client packet with a destination port number of 67, what service is the client seeking?
File transfer (FTP).
Remote terminal access (Telnet).
Dynamic Host Configuration Protocol (DHCP).
Secure shell access (SSH).
3
What benefit does adopting IMAP offer to small organizations over POP?
IMAP manages sending and receiving emails, while POP only receives.
POP centrally stores messages, while IMAP allows distributed storage.
Emails stay on servers until manually deleted from the client.
POP servers briefly store message copies; IMAP stores them longer.
4
What role does the TCP sliding window serve?
Signaling the source to retransmit data from a designated point onward.
Terminating communication once data transmission concludes.
Ensuring that segments reach the destination in sequential order.
Requesting the source to reduce its data transmission rate.
5
What are the
two
main duties of the Ethernet MAC sublayer?
Performing Error Detection
Establishing Frame Delimiting
Initiating Media Access
Handling Logical Addressing
Managing Data Encapsulation
6
What are the
three
attributes of the CSMA/CD process?
Devices listen and wait for an idle medium before transmitting
All segment devices receive transmitted data over network medium
The token-holding device gains exclusive transmission rights post-collision
A jam signal signifies resolved collision and available medium
Devices can be prioritized for higher precedence
Hosts resume transmission after a random delay post-collision
7
Which three Windows CLI tools are suitable for troubleshooting IP, DNS, and router connectivity on a new subnet?
nslookup
netsh interface ipv6 show neighbor
ipconfig
ping
arp -a
tracert
8
What are the three steps to set up router R1 for encrypted SSH connections with a secret password for a local user?
Generate the SSH encryption keys.
Configure DNS settings on the router.
Activate incoming (inbound) vty SSH sessions.
Set up the IP domain name on the router.
Create two-way pre-shared keys.
Enable incoming (inbound) vty Telnet sessions.
9
How does a router prevent an IPv4 packet from endlessly traversing a network?
Increment TTL by 1, discard if 100, send Parameter Problem.
Examine TTL, discard if 0, send Destination Unreachable.
Decrement TTL by 1, discard if 0, send Time Exceeded.
Inspect TTL, discard if 100, send Destination Unreachable.
10
What are two issues that may arise due to a significant volume of ARP request and reply messages?
ARP requests flood the subnet as broadcasts.
Switches get overloaded with traffic from attached subnets.
Network congestion can result from large ARP reply payloads.
Excessive ARP messages slow switching, increasing MAC table updates.
All nodes on LAN process every ARP request message.
11
What switching technique discards frames that do not pass the FCS check?
Rapid cut-through switching
Store-and-forward switching
Seamless borderless switching
Frame buffering at ingress ports
12
What are
two
prevalent reasons for signal deterioration when employing UTP cabling?
Inadequate shielding within the cable.
Incorrect termination techniques.
Light attenuation over extended distances.
Substandard cable or connector quality.
Cable installation within conduits.
13
What is the purpose of assigning an IP address to a Layer 2 switch?
To facilitate remote management of the switch.
To allow the switch to receive frames from connected PCs.
To enable the switch to transmit broadcast frames to connected PCs.
To allow the switch to operate as a default gateway.
14
When adding a new LAN with 25 devices to a branch office, what's the smallest network mask the administrator can use?
255.255.255.224
255.255.255.252
255.255.255.128
255.255.255.220
15
What service is being requested by the client when a server receives a packet with a destination port of 143?
SSH
FTP
IMAP
Telnet
16
What is a benefit of utilizing a protocol governed by an open standard?
An open standard protocol is free from regulation by standards bodies.
It fosters competition and provides multiple options.
A corporation has the ability to dominate the market.
The protocol is exclusive to equipment from a particular vendor.
17
When planning a new wireless network layout, what are
three
critical considerations for a network administrator?
Options for mobility within the network.
Ensuring robust security measures.
Mitigating potential interference issues.
Preventing packet collisions during data transmission.
Determining the adequate coverage area.
18
What are
three
prerequisites specified by network protocols for message transmission?
Encoding of messages.
Specifications for connectors.
Determination of media types.
Device connectivity establishment.
Options for message delivery.
Limitations on message size.
19
What are
two
methods to evaluate traffic flow patterns and network types with a protocol analyzer?
Focus on WAN traffic, the largest volume.
Capture during weekends for minimal employee activity.
Capture traffic during peak usage for a comprehensive view.
Capture traffic in high-traffic areas.
Capture across diverse network segments.
20
What is the impact of enabling IPv6 unicast routing using the global configuration command on a router?
Router interfaces become operational automatically.
IPv6-enabled router interfaces send ICMPv6 Router Advertisement messages.
Router interfaces generate IPv6 link-local addresses.
Dynamically assigns a global unicast address to the router.
21
How can proprietary protocols be defined?
TCP/IP protocol suite.
Organization-developed protocols with authority.
Private entity protocols for vendor hardware compatibility.
Open protocols for unrestricted use.
22
In the output of the "show ip interface brief" command, what are
two
types of information that can be observed?
Hardware addresses
Interface details or labels
IP addresses
Transmission rate and communication mode settings
Forwarding destination addresses
Layer 1 statuses
23
What are
two
accurate statements regarding features of an IPv4 routing table on a router?
Default static routes are marked as S.
Use "netstat -r" to view the router's routing table.
Lower metric routes to the same destination are listed.
The routing table tracks routes from active interfaces.
Direct connected interfaces via routing table are shown with codes C and S.
MAC addresses for active interfaces are displayed.
24
Which switching method does a switch revert to when reaching a custom error threshold per port in its configuration?
Rapid transmission (fast-forward)
Complete transmission (store-and-forward)
Partial transmission (fragment-free)
Expedited transmission (cut-through)
25
What occurs when the 'transport input ssh' command is configured on the switch's vty lines?
Remote connections to the switch are limited to proprietary client software
Communications between the switch and remote users are encrypted
SSH client is enabled on the switch
The switch requires a username/password for remote access authentication
26
What details are presented when using the show startup-config command?
The configuration data saved in the NVRAM
The initial bootstrap program located in ROM
The operating system image stored in RAM
The configuration settings currently active in RAM
27
Which tool with admin privileges should the technician use to locate an issue causing slow loading of a web page?
Use "tracert" to trace packet routes to the external server.
Perform "ping" for connectivity and response time testing.
Employ "nslookup" for DNS server queries and troubleshooting.
Use "ipconfig /displaydns" to view DNS resolver cache contents.
28
What would be the interface ID of an IPv6-enabled interface using the EUI-64 process with MAC address 1C-6F-65-C2-BD-F8?
A1B2:C3D4:E5F6:7890
1E6F:65FF:FEC2:BDF8
1234:5678:ABCD:EF01
00FF:65FF:FEC2:BDF8
29
What occurs when the default gateway address is misconfigured on a host?
The host must utilize ARP to ascertain the accurate default gateway address
Packets initiated by the host are not forwarded by the switch
The host loses connectivity with hosts in different networks
Communication with other hosts in the local network is hindered
A ping to 127.0.0.1 from the host fails
30
Which frame field generated by a source node is used by a destination node to verify data signal integrity?
User Datagram Protocol Data Field
Integrity Check Field at the Transport Layer
Traffic Management Field
Error Rectification Process Field
Frame Check Sequence Field
31
What should network engineers examine to determine if delays in authentication and network resource access are normal?
Syslog records and messages give insights into network events.
Debug output and packet captures detail network traffic.
Network configuration files hold device settings.
Performance baseline benchmarks normal network behavior.
32
Which scenario illustrates a function performed by the transport layer?
Transport layer encodes movie and sound for web-based viewing.
Transport layer ensures accurate web page delivery to two browser windows.
Transport layer arranges web page display across devices.
VoIP phone uses a burnt-in unique identifier for communication.
33
Which
two
statements accurately outline a benefit or drawback of implementing NAT for IPv4 in a network?
NAT helps with IPv4 address depletion.
NAT can impact switch efficiency.
NAT adds complexity to routing tables.
NAT adds authentication to IPv4 networks.
NAT can challenge applications needing end-to-end connectivity.
NAT optimizes packet processing.
34
What are two protocols functioning at the highest layer within the TCP/IP protocol suite?
TCP
HTTP
DNS
POP3
SNMP
RDP
35
What kind of server depends on record types like A, NS, AAAA, and MX to deliver services?
Website Hosting
Mail
Data Storage
Domain Name System (DNS)
36
What is the acceptable range of link-local addresses that can be allocated to an IPv6-enabled interface?
FE80::/10
FG00::/8
FD80::/7
FFC0::/10
37
What are the
two
characteristics of ARP?
ARP requests are broadcasted to all devices on an Ethernet LAN
If a device has the target IPv4 address, it replies with an ARP response
If there's no ARP response, the source node broadcasts the packet
Hosts broadcast an ARP request when sending packets w/o destination MAC
Hosts refer to the MAC address table during packet encapsulation
38
What are the
three
layers of the OSI model that correspond to the application layer of the TCP/IP model?
Data Link
Application
Transport
Presentation
Session
Network
39
What role does the data link layer perform in networking?
Facilitates the transmission of frames across a shared local media.
Ensures the formatting of data packets.
Enables data exchange between two applications.
Enables end-to-end data delivery between hosts.
40
Which
three
statements accurately describe TCP or UDP's role in data transmission from source PC to destination server?
TCP selects destination port randomly during session setup.
Source port field identifies the returning data handler.
TCP source port number shows sending host.
TCP is used for low network overhead functions.
UDP destination port specifies server application.
UDP segments are within IP packets.
41
What are the
two
most efficient methods for protecting against malware?
Keep the operating system and other software applications updated.
Utilize robust passwords.
Install and regularly update antivirus software.
Deploy network firewalls.
Implement RAID technology.
Employ a VPN (Virtual Private Network).
42
What are
three
network features when an employee joins a video conference w/o disruption from an ISP connection failure?
Data Integrity
Fault Tolerance
Network Security
Quality of Service (QoS)
Scalability
Powerline Networking
43
After generating an IPv6 address using SLAAC, what is the next step the client must take before using it?
It requests DNS server address with DHCPv6 INFORMATION-REQUEST.
It requests permission to use the address with DHCPv6 REQUEST.
It sends an ICMPv6 Router Solicitation to find the default gateway.
It verifies the address with ICMPv6 Neighbor Solicitation.
44
Which subnet ID corresponds to the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?
2001:DA48:FC5:A4::/64
2001:DA58:DC5::A4:/64
2001::/64
2001:DA58::/64
45
What are
two
attributes of IP?
Functions regardless of the network media type.
Rearranges out-of-order packets to correct sequence at the receiver's end.
Ensures the delivery of packets
Does not mandate a dedicated end-to-end connection.
Automatically retransmits packets in case of errors.
46
In data communication, what is the definition of "attenuation"?
Duration for a signal to reach its destination.
Decrease in signal strength with increasing distance.
Amplification of a signal by a networking device.
Signal leakage from one cable pair to another.
47
What are
two
accurate statements when contrasting IPv4 and IPv6 packet headers?
The Version field present in IPv4 is absent in IPv6.
The Destination Address field is a novel addition in IPv6.
The IPv4 Time-to-Live field is replaced by the Hop Limit field in IPv6.
The Source Address field name remains unchanged from IPv4 to IPv6.
The Header Checksum field name persists in IPv6 as it did in IPv4.
48
What are
two
factors causing signal distortion in Ethernet cabling near fluorescent lights and electrical equipment?
Electromagnetic interference (EMI)
Signal attenuation due to the length of the cabling
Radio frequency interference (RFI)
Crosstalk between adjacent cables
Excessive length of the cabling
49
What does the "service password-encryption" command enhance on Cisco routers and switches?
Requires encrypted passwords for console access.
Encrypts passwords during network transmission.
Mandates encrypted passwords for remote Telnet connections.
Encrypts passwords in router/switch configuration files.
50
How does a host get the destination MAC address for a device on a remote LAN without an entry in its ARP cache?
It sends an ARP request to get the MAC address of the default gateway.
It looks for the destination MAC address from the DNS server.
It starts an ARP request to get the MAC address of the intended device.
It sends the frame using a broadcast MAC address.
It transmits the frame using its MAC address as the target destination.
