CompTIA Network Certification Exam Questions and Answers 2025 - Prof. Smith, Exams of Nursing

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CompTIA Network Certification Exam

Questions and Answers 2025

Where does a hub send data? A. Only to the receiving system B. Only to the sending system C. To all the systems connected to the hub D. Only to the server o :## C What uniquely identifies every NIC? A. IP address B. Media access control address C. ISO number D. Packet ID number o :## B What Windows utility do you use to find the MAC address for a system? A. ipconfig /all B. ipcfg /all C. ping D. mac

o :## A A MAC address is known as a(n) address. A. IP B. logical C. physical D. OEM o :## C A NIC sends data in discrete chunks called. A. segments B. sections C. frames D. layers o :## C Which MAC address begins a frame? A. Receiving system B. Sending system C. Network D. Router

o :## A A frame ends with a special bit called the frame check sequence (FCS). What does the FCS do? A. Cycles data across the network B. Verifies that the MAC addresses are correct C. Verifies that the data arrived correctly D. Verifies that the IP address is correct o :## C Which of the following is an example of a MAC address? A. 0- 255 B. 00 - 50 - 56 - A3- 04 - 0C C. SBY3M D. 192.168.4. o :## B Which layer of the TCP/IP model controls the assembly and disassembly of data? A. Application layer B. Presentation layer C. Session layer

D. Transport layer o :## D Which layer of the OSI seven-layer model keeps track of a system's connections to send the right response to the right computer? A. Application layer B. Presentation layer C. Session layer D. Transport layer o :## C Which of the following topologies requires termination? A. Star B. Bus C. Mesh D. Ring o :## B Star-bus is an example of a topology. A. transitional B. system

C. hybrid D. rampant o :## C Of the topologies listed, which one is the most fault-tolerant? A. Point-to-point B. Bus C. Star D. Ring o :## C What term is used to describe the interconnectivity of network components? A. Segmentation B. Map C. Topology D. Protocol o :## C Coaxial cables all have a(n) rating. A. resistance B. watt

C. speed D. ohm o :## D Which of the following is a type of coaxial cable? A. RJ- 45 B. RG- 59 C. BNC D. Barrel o :## B Which network topology connects nodes with a ring of cable? A. Star B. Bus C. Ring D. Mesh o :## C Which network topology is most commonly seen only in wireless networks? A. Star B. Bus

C. Ring D. Mesh o :## D Which of the following is a duplex fiber-optic connection? A. LC B. RJ- 45 C. ST D. SC o :## A What is the most common category of UTP used in new cabling installations? A. CAT 5 B. CAT 5e C. CAT 6 D. CAT 6a o :## B Ethernet hubs take an incoming packet and it out to the other connected ports. A. amplify

B. repeat C. filter D. distort o :## B What is appended to the beginning of the Ethernet frame? A. MAC address B. Length C. Preamble D. FCS o :## C What type of bus does 10BaseT use? A. Bus B. Ring C. Star bus D. Bus ring o :## C What is the maximum distance that can separate a 10BaseT node from its hub? A. 50 meters

B. 100 meters C. 185 meters D. 200 meters o :## B When used for Ethernet, unshielded twisted pair uses what type of connector? A. RG- 58 B. RJ- 45 C. RJ- 11 D. RS- 232 o :## B What is the maximum number of nodes that can be connected to a 10BaseT hub? A. 1024 B. 500 C. 100 D. 185 o :## A Which of the following is not true of crossover cables? A. They are a type of twisted-pair cabling.

B. They reverse the sending and receiving wire pairs. C. They are used to connect hubs. D. Both ends of a crossover cable are wired according to the TIA/EIA 568B standard. o :## D Which of the following connectors are used by 10BaseFL cable? (Select two.) A. SC B. RJ- 45 C. RJ- 11 D. ST o :## AD Which networking devices can use the Spanning Tree Protocol (STP)? A. Hubs B. Media converters C. UTP cables D. Switches o :## D What device directs packets based on MAC addresses? A. Router

B. Hub C. Repeater D. Switch o :## D With 100BaseT, what is the maximum distance between the switch and the node? A. 1000 meters B. 400 meters C. 100 meters D. 150 meters o :## C What type of cable and connector does 100BaseFX use? A. Multimode fiber with ST or SC connectors B. STP CAT 6 with RJ- 45 connectors C. Single-mode fiber with MT-RJ connectors D. UTP CAT 5e with RJ- 45 connectors o :## A How many pairs of wires do 10BaseT and 100BaseT use? A. 4

B. 1

C. 3

D. 2

o :## D What standard does IEEE 802.3ab describe? A. 1000BaseLX B. 1000BaseT C. 1000BaseCX D. 1000BaseSX o :## B What is the big physical difference between 1000BaseSX and 100BaseFX? A. 1000BaseSX uses the SC connector exclusively. B. 1000BaseSX is single-mode, whereas 100BaseFX is multimode. C. 1000BaseSX uses the ST connector exclusively. D. There is no difference. o :## A What is the maximum distance for 1000BaseLX without repeaters? A. 1 mile

B. 2500 meters C. 20,000 feet D. 5000 meters o :## D What is a big advantage to using fiber-optic cable? A. Fiber is common glass; therefore, it's less expensive. B. Fiber is not affected by EMI. C. Making custom cable lengths is easier with fiber. D. All that orange fiber looks impressive in the network closet. o :## B How many wire pairs does 1000BaseT use? A. 1 B. 2 C. 3 D. 4 o :## D What is the standard connector for the 10 GbE fiber standard? A. ST

B. SC

C. MT-RJ

D. There is no standard. o :## D What is the maximum cable length of 10GBaseT on CAT 6? A. 55 meters B. 100 meters C. 20 meters D. 70 meters o :## A Which of the following cables should never be used in a structured cabling installation? A. UTP B. STP C. Fiber-optic D. Coax o :## D Which of the following enables you to use multiple NICs in a computer to achieve a much faster network speed?

A. Bonding B. Linking C. SLI D. Xing o :## A How many pairs of wires are in a CAT 5e-rated cable? A. 2 B. 4 C. 8 D. It doesn't specify. o :## B A(n) organizes and protects the horizontal cabling in the telecommunications room. A. rack B. patch panel C. outlet D. 110 jack o :## B

Which of the following would never be seen in an equipment rack? A. Patch panel B. UPS C. PC D. All of the above may be seen in an equipment rack. o :## D What are patch cables used for? (Select two.) A. To connect different telecommunications rooms. B. To connect the patch panel to the switch. C. They are used as crossover cables. D. To connect PCs to outlet boxes. o :## BD Which of the following network technologies use UTP cabling in a star topology? (Select two.) A. 10Base B. Fiber optics C. 10BaseT D. 100BaseT

o :## CD Jane needs to increase network throughput on a 10BaseT network that consists of one hub and 30 users. Which of the following hardware solutions would achieve this most inexpensively? A. Add a fiber backbone. B. Upgrade the network to 100BaseT. C. Replace the hub with a switch. D. Add a router. o :## C What two devices together enable you to pick a single cable out of a stack of cables? (Select two.) A. Tone aggregator B. Tone binder C. Tone generator D. Tone probe o :## CD Rack-mounted equipment has a height measured in what units? A. Mbps B. MBps

C. Inches D. U o :## D How many bits does an IPv4 address consist of? A. 16 B. 32 C. 64 D. 128 o :## B Identify the network ID section of the following IP address and subnet mask: 10.14.12.43-255.255.255.0. A. 10. B. 43 C. 10.14. D. 14.12. o :## C Which of the following is a proper subnet mask? A. 11111111111111111111111100000000

B. 00000000000000000000000011111111

C. 10101010101010101010101011111111

D. 01010101010101010101010100000000

o :## A What does ARP stand for? A. Address Reconciliation Process B. Automated Ranking Protocol C. Address Resolution Protocol D. Advanced Resolution Protocol o :## C Identify the class of the following IP address: 146.203.143.101. A. Class A B. Class B C. Class C D. Class D o :## B Which of the following are valid subnet masks? (Select two.) A. 11111111.11111111.11100000.

B. 11111111.11111111.11111111.

C. 11111111.00000000.11111111.

D. 00000000.00000000.11111111.

o :## AB What is the maximum number of hosts in a /19 subnet? A. 254 B. 8, C. 16, D. 8, o :## D What is the number 138 in binary? A. 10001010 B. 10101010 C. 10000111 D. 11001010 o :## A When DHCP Discover fails, what process will the client use to generate an address for itself?

A. ATAPI (Automatic Temporary Address Program Initiator) B. APIPA (Automatic Private IP Addressing) C. ATIPA (Automatic Temporary IP Address) D. APFBA (Automatic Programmable Fall Back Address) o :## B Which of the following is a valid loopback address? A. 128.0.0.1 B. 127.0.0.0 C. 128.0.0.255 D. 127.24.0.1 o :## D What is a router? A. A piece of hardware that forwards packets based on IP address B. A device that separates your computers from the Internet C. A piece of hardware that distributes a single Internet connection to multiple computers D. A synonym for a firewall o :## A

Routers must use the same type of connection for all routes, such as Ethernet to Ethernet or ATM to ATM. A. True B. False o :## B What technology allows you to share a single public IP address with many computers? A. Static Address Translation B. Natural Address Translation C. Computed Public Address Translation D. Port Address Translation o :## D Given the routing table where would a packet with the address 64.165.5.34 be sent? A. To the default gateway on interface WAN. B. To the 10.11.12.0/24 network on interface LAN. C. To the 64.165.5.0/24 network on interface WAN. D. Nowhere; the routing table does not have a route for that address. o :## C Distance vector routing protocols such as RIP rely on what metric to determine the best route?

A. Hop count. B. Link speed. C. Ping time. D. Routes are chosen at random. o :## A What are two big advantages to using OSPF over RIP or BGP? (Select two.) A. OSPF is a modern protocol that does not have legacy problems. B. OSPF chooses routes based on link speed, not hop count. C. OSPF runs on all routers, big and small. D. OSPF sends only routing table changes, reducing network traffic. o :## BD What is Area 0 called in OSPF? A. Local Area B. Primary Zone C. Trunk D. Backbone o :## D

What is the name of the cable that you use to connect to the console port on Cisco routers? A. Router console cable B. Yost cable C. That funny blue Cisco cable D. Null modem cable o :## B When you are first setting up a new router, you should never plug it into an existing network. A. True B. False o :## A The traceroute utility is useful for? A. Configuring routers remotely B. Showing the physical location of the route between you and the destination C. Discovering information about the routers between you and the destination address D. Fixing the computer's local routing table o :## C

The protocol developed by Netscape for transmitting private documents over the Internet is known as _. A. SSS B. SSA C. SSL D. NSSL o :## C Which of the following are key benefits of Web-based mail? (Select two.) A. You can use a third-party application, like Microsoft Outlook, to download your e- mail. B. You can access your e-mail from anywhere in the world using a Web browser and an Internet connection. C. It is completely spam-free. D. It is great for creating throw-away accounts. o :## BD An SSL URL connection starts with which prefix? A. http B. www C. ftp D. https