Network+ Study Guide Part 1

What UDP ports does DHCP use?

Ensures data is delivered to the proper device on a LAN using MAC addresses.

Very powerful computers that typically specialize in a single labor-intensive job and are there to serve the network

Which of these is not a protocol at the Internet Layer in the TCP/IP model?

What does twisting wires in Twisted-Pair Cable help prevent?

Which of these application layer protocols uses both UDP and TCP?

Which of these layers of the OSI model corresponds to the Network Access layer of the DoD's TCP/IP model?

What must the first bit of a class A address always be set to?

Which of these is considered a baseband technology?

What does it mean if you can ping a device with it's IP address but not with it's FQDN?

Four wires, 1000baseTX, 250 MHz, typically used as a riser cable to connect floors. Reduced max length for 10GbaseT

DHCP can send an operating system that the host can boot from while BootP cannot do that.

Routers, by default, won't forward broadcast and multicast packets.

Standardizes how you access directories that include network, device, and user information. Port 389

HIDS detects abnormalities on a single system, rather than a network, and is typically implemented on servers

All of the following are functions of routers except...

Which 802.3 Committee specifies 10G Ethernet over UTP cables?

Allows applications on separate computers on a network to communicate with each other. Ports 137-139

Acts as interface between application and the layer below. Determines availability of speaking partners and resources

Path from one machine to every other in a network. Very fault-tolerant but very expensive. Not commonly used in LANS

Connectionless signaling protocol used to define multimedia communication sessions over the internet. Ports 5060/506

10G Ethernet over SMF, extra-long-wavelength lasers(1,550), longest transmission distances(2 m to 40 km)

10G Ethernet over SMF, extra-long-wavelength lasers(1,550), 2 m to 40 km, designed for SONET equipment

Which of these inspects and filters internet traffic, performs deep packet inspection(DPI), and is application aware?

Allows clients to connect to another machine remotely and operate it. Uses a GUI. Port 3389.

Which of these does not describe a WAN?

How many octets are used for the network address in a class A IP address?

A layer 3 device that connects multiple networks into an internetwork.

Which of these isn't true, regarding crossover cables?

Four twisted pairs(8 wires), up to 4 Mbps, 10 MHz, considered obsolete

Keeps transactions between web browsers and web servers secure. Port 443

A switch is configured to force full duplex and 100 mbps operation by default

Also known as Thicknet, physical and logical bus w/ AUI connectors, 10 Mbps, up to 500 meters(2000 meters w/ repeaters).

Ensures data from one system can be understood on another. Handles compression, encryption, and translation

Which of these describes the correct order in which data is encapsulated as it moves down the OSI model?

Powerful computers with more than one CPU that share resources that end users use on a daily basis

Uses a spooled, or queued, method of mail delivery. Port 25.

Which of these layers of the OSI model corresponds to the Process/Application layer of the DoD's TCP/IP model?

Which version of SNMP added GETBULK, which allows hosts to receive large amounts of data at once?

What protocol sends out broadcasts of a devices IP address, forcing the device to respond with its MAC address?

What address range is used the global unicast address range (public routable addresses)?

What DNS record is used to map hostnames to IPV6 addresses?

Provides storage facility for incoming mail. Messages are sent to client after they connect to mail server. Port 110.

Four pairs, 100baseTX, 100 MHz.

What DNS record allows a host to have more than one name?

10G Ethernet over MMF, short-wavelength lasers(850nm), 2-300m

What is the multicast range in IPv6?

Which of these tracks, plans, and manages IP addresses?

What are the first 3 bits of a class C address?

Not recognized by TIA/EIA, 4 wires, 10 G, 100 m

The difference between a MLS and a router is that routers perform packet-switching with a microprocessor while MLSs use

Which of these correctly describes an attribute of TCP?

What color are pins 1 and 2 on a T-568A cable?

Identifies multiple interfaces but packets are only sent to the nearest interface. Also known as one-to-one of many

Which version of SNMP is the most up-to-date and provides greater security, authentication, and encryption?

A DHCP client sends out a Discover Message in order to gain what

These IPv6 addresses are used to create temporary LANs that share resources but cannot be routed

What protocol allows diskless machines to send out its MAC address to a designated machine to learn its IP address?

What is the range of numbers that the first octet of a class B address can be set to?

A layer 2 device that connects several segments of a network and makes forwarding decisions based on MAC addresses

Manages communication between web browsers and web servers and delivers web pages to hosts. Port 80

What DNS record do you use when you know the IP address of a host and want to know its hostname?

What class subnet does APIPA provide?

The point where all main cabling, inside network, converges and terminates. Its also known as the WAN termination point

Cat 3 UTP, 10 Mbps, each device must join to hub/switch, 1 device per segment, RJ-45, physical star w/ logical bus

Which of these is the most popular method of name resolution?

Which of these is considered a broadband technology?

This protocol allows a remote client to access resources of another machine by making the client appear local. Port 23.

Routing protocols handle route-update packets and pathways while routed protocols handle data packets and data transfer

What layer of the OSI model does ICMP work at?

What is the range of numbers you can have in the first octet of a class A network address?

Broadband over Power Line (BPL) is also known as

What is the range of numbers that the first octet of a class C address can be set to?

Router interfaces work as soon as they are plugged in and require no prior configuration

Any device on a network with an IP address

What letter does an ethernet broadcast address entirely consist of?

Fiber Distribution Panels are termination and distribution systems for fiber optic cable facilities.

Which of these is not a legal way to shorten this IPv6 address? 2001:0db8:3c4d:0012:0000:0000:1234:56ab

Segments and reassembles data into a stream. Provides end-to-end transport. TCP and UDP are common protocols

Keeps applications'' data separate from other applications. Handles set-up, management, and closing of communication

IDSs only monitor and record networks for malicious activity while IPSs actively prevent and block intrusions

In which of these ways is a switch different from a hub?

If a packet is destined for a remote host, whose hardware address will the network layer request for via ARP?

Which of the following does not describe an RJ-48c connector?

IEEE 802.3u, 62.5/125-micron MMF, up to 412 m, P2P topology, ST and SC connectors.

Data flows from device to device until it goes back to the source. Not commonly used for LANS and is not fault tolerant

What protocol would you use if you needed your FTP transfers secure? Uses SSH. Port 22

10G Ethernet over SMF, long wavelength lasers(1310nm), 2 m to 10 km, designed to connect to SONET equipment

SNMPv3 uses both TCP and UDP

What range of IP addresses is used for loopback testing?

A software based layer 2 device that connects two similar network segments and forwards messages using MAC addresses

Which protocol acts as a messenger for reporting errors on a network?

CSMA/CD is used in full-duplex technology.

Newer wiring distribution point. Has replaced most old 66 blocks and can be used for both networking and telephone lines

Which of these can a straight-through cable not connect, assuming no devices are using auto-MDIX?

MMF, short wavelength laser(850nm), uses 62.5 micron core(220 m) or 50-micron core(550 m), SC connectors

Which of these is DCE?

Fast Ethernet runs at 100 Mbps, which means the AUI for original 802.3 specs, that ran at 10 Mbps, had to be replaced w/

What is the theoretical maximum number of class A networks that can be created?

Which of these can a DHCP server NOT provide?

What do DHCP server scope options provide?

What is the first thing an AP does with a frame once it has received it?

IEEE 802.3u, 100 Mbps, Cat 5, 5e, or 6, 2-pair UTP, 100 m, 1 user per segment, RJ-45, phys star w/ logical bus

DHCP is connectionless, which means it uses ____ at the host-to-host layer.

What does CSMA/CA implement when it detects a signal already on the medium while trying to send?

Virtual circuits that don't identify with well-known ports and identify sources/destinations will use which port values?

Which of these is not a fiber-optic connector?

Which of these is NOT a connector RS-32 cabling can use?

Access Points will keep MAC headers on data packets when forwarding them wirelessly

What is the intermediary network between two firewalls called?

What is the unique local unicast range?

Which of these is considered DTE?

What is the range of numbers that the first octet of a class D address can be set to?(Multicast addresses)

Any device on a network that asks for resources

Which of these switches calls between VoIP users on local lines while allowing them to share external lines?

Ethernet over fiber to desktop, 500-2,000 m, 10 Mbps

What is the link-local unicast range?

What is the purpose of the OUI in a MAC address?

What color are pins 1 and 2 on a T-568B cable?

Which 802.3 Committee is for Fast Ethernet

A layer 1 device that connects segments of a network in a physical star/logical bus topology.

Four wires(two twisted pairs), voice-grade only, 1 MHz, commonly referred to as POTS (Plain-Old Telephone Service)

Routing tables are to routers as filter tables are to switches and bridges.

Twinax, up to 25 m, 9-pin connector called HSSDC

Which of these is not a routing protocol?

What do multicast addresses always start with in IPv6?

The demarc is the last point of responsibility for service providers and is where a customer's network connection begins

4 twisted pair wires, 20 MHz, obsolete

A layer 2 device that interfaces your computer with a network

What are rollover cables used for?

If the I/G bit in a MAC address is set to zero, then the destination address is...

What color wires are used in twisted pair cables?

Describes packet-formatting standards and delivers audio and video over the internet. Ports 5004/5005

Cryptographic protocols that enable secure online data transfer. Uses various different ports.

Standard for controlling media gateways during multimedia signaling sessions. Ports 2427/2727

Defines electrical, mechanical, procedural, and functional requirements for maintaining connection and physical topology

Which of these devices can you not use full-duplex with?

Which 802.3 Committee defines 10G Ethernet over coax and fiber?

1000 Mbps, 4-pair(8 wires) UTP, 100 M, RJ-45

What would you use if you needed the services of Telnet plus security and encryption? It uses port 22.

Connects and terminates telephone lines. Can only be used for analog telephone connections.

Four pairs, transmissions up to 16 MHz, was popular for 10 Mbps ethernet, currently used only for telecommunications

Which of these is a type of SFF(Small Form Factor) fiber-optic connector?

Synchronizes the clocks of all computers on a network to an agreed-upon time. Port 123

10G Ethernet over MMF, short-wavelength lasers(850nm), 2-300m, designed for SONET equipment

Provides security and more control over how you download mail. Clients can store mail on mail servers. Port 143.

which of these is not included in a network layer packet?

Four pairs, 500 MHz, up to 100M for 10GbaseT.

Which of these is the IPv6 loopback address?

Which 802.3 Committee is for Gigabit Ethernet on Cat 5+

Forwarding proxies take requests from the internet and forward them to clients while reverse proxies do the opposite

Which of these doesn't describe a difference between multimode fiber and single mode fiber?

It is impossible for wireless stations to detect collisions

Allows users to send files, as well as manipulate and retrieve files and directories from a remote server. Ports 20, 21.

How many pins in a twisted pair cable does VoIP use?

Which of these is NOT considered a serial cable?

What protocol is used by Ping and Traceroute?

Nearly globally unique but are not routed. Similar to IPv4 private addresses. Can be routed within organization/company

Which of these layers of the OSI model corresponds to the Host-to-Host layer of the DoD's TCP/IP model?

Which of these is a function both routers and switches have?

Which of these correctly describes an attribute of UDP?

What does it mean if you have an IP address in the range of 169.254.0.1- 169.254.255.254 and you also have a DHCP server

10G Ethernet over SMF, long wavelength lasers(1310nm), 2 m to 10 km

Devices connect to a central point, making it easy to install, modify and troubleshoot. Has single point of failure

Which of these is not a responsibility of the Data Link Layer?

10 Gbps, 100 m, RJ-45, 4-pair UTP

Four wires, 1000baseT, 100 MHz, nothing should be used below this category for todays networks

Also known as Thinnet, 10 Mbps, up to 185 meters, physical and logical bus w/ AUI connectors, uses BNC and T-connectors.

Handles logical addressing and transports data that isn't locally attached.

What do routers use to control security on the types of packets that can enter the network?

What layer contains devices that provide connections between LANs and VLANs?

What range of port values are defined by RFC 3232 and are considered well-known ports?

Allows devices on a network to share files and printers. Port 445. UDP ports 137/138 and TCP ports 137/139 using NetBIOS

What type of coaxial connector is used for cable TV and resembles the RG-58 connector used by Thinnet?

Which of these is not an application layer protocol?

A MAC Reservation is a reserved IP address for a particular host from the DHCP server

A smart jack is located at the demarcation point

Filters packets based on rules set by network administrator

Which of these layers of the OSI model corresponds to the Internet layer of the DoD's TCP/IP model?

What does Windows provide if you do not have a DHCP server?

Connection-oriented protocol that defines standards of multimedia transmissions on the internet. Port 1720

Which of these application layer protocols uses TCP?

What color are pins 4 and 5, which divide the orange pins, in a T-568A cable?

CSMA/CA is used on wireless networks while CSMA/CD is used on wired networks.

Used for managing IP multicast sessions. Works at network layer and does not use port numbers

What topology has each device connecting to an unbroken cable, is cheap/easy to install, and has poor fault-tolerance?

What protocol looks at data packet destination addresses and decides where to send them next, choosing the best path?

Sends and receives files only, easy to use, fast, sends smaller blocks of data, but is insecure. Port 69.

SMF, 9-micron core, 1,300 nm laser, 3-10 km

Which of these does a load balancer not do?

What port does DNS use?

What color are pins 4 and 5, which divide the green pins, in a T-568B cable?

Collects and manipulates network information and receives baselines for network health and traits. Port 161

What are the first 2 bits of a class B address?

Once an AP has cached a frame, what does it do?

How many pairs of wires are used in 10/100mbps networks?

Consists of 25 pairs of wires and is usually only used for telephone cabling. Also known as a feeder cable.

Where do pins 4 and 5 connect to on a crossover cable?

Dedicated encryption devices provide all of the following except...

Cat 5, 2-pair(4 wires) UTP, 100 m, has been replaced by CAT 6 wiring