Network+ Practice Questions

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Contents 1 See Also 2 Acknowledgements 3 Miscellaneous Practice Questions 4 Page Credits

[edit section] See Also

Official ProProfs Network+ Practice Questions

[edit section] Acknowledgements

Special thanks to JMT's Question of the Day Thread which provided a number of practice questions that are listed here such as questions 24 to 30. Please feel free to post comments/feedback at the Question of the Day Thread

[edit section] Miscellaneous Practice Questions

David says his IP address is 127.156.10.100, at first glance how do you know he is wrong? Answer: An IP address starting with 127 is for testing.




Which of the following is the Class C subnet mask?

A. 255.0.0.0

B. 255.255.0.0

C. 255.255.255.0

D. 255.255.255.255

Answer: C




What number does the decimal conversion 00100111 convert to?

Answer: 39




You have a small network connected to the Internet via phone line. Which of the following pieces of equipment will you need?

a. CSU/DSU

b. Modem

c. ISDN Adapter

d. Bridge

e. Token Ring

Answer: B – A modem modulates/demodulates signals between analog (phone) networks and digital (local area) networks.




A client reports that he is unable to connect to a few pages on the Internet, but can connect to almost all others. Which of the following would prevent him from connecting to these pages?

a. Gateway

b. Router

c. Firewall

d. Proxy Server

e. All of the Above


Answer: D – Only the Proxy Server is able to filter individual pages in this way.




Which uniquely identifies a wireless network?

a. MAC Address

b. Host ID

c. SSID

d. DSSS


Answer: C - SSID, or service set identifier (aka Network Name) uniquely establishes a wireless network.




Which encoding scheme does Bluetooth wireless technology use?

a. FHSS

b. DSSS

c. OFDM

d. HTTPS


Answer: A - Bluetooth incorporates FHSS, or Frequency Hopping Spread Spectrum




Which nbstat switch will clear and reload the remote NetBIOS name table cache?

a. -r

b. -R

c. /all

d. /cts


Answer: B - The correct command is nbstat -R




Which of the following protocols is used to translate TCP/IP addresses to MAC addresses?

a. SMTP

b. ARP

c. WINS

d. SNMP


Answer: B - ARP, or Address Resolution Protocol, contains a list of known TCP/IP addresses and their related MAC addresses




The IEEE 802.5 Standard describes which of the following?

a. Ethernet (CSMA/CD)

b. Token Bus

c. Token Ring

d. LAN/MAN Standards Committee


Answer: C - Token Ring




Wireless Access Points manipulate data at what level of the OSI model?

a. Transport

b. Network

c. Data-Link

d. Physical


Answer: C - Data-link




IPX addresses consist of which of the following? (Select all that apply)

a. Host ID

b. Network Address

c. IPX Interlay

d. Node Address


Answer: B, D - IPX addresses consist of an 8-digit hex number (Network Address) and a 12-digit hex number (Node Address)




Which one of the following devices will not create broadcasts from one of its devices to another?

a. Router

b. Switch

c. Repeater

d. MAU


Answer: A - Routers do not propagate broadcasts




Which of the following protocols are routable? (Select all that apply)

a. IPX

b. TCP/IP

c. NetBEUI


Answer: A, B - The only non-routable protocol is NetBEUI

Which Name Resolution Protocol is used by Appletalk?

A - DNS

B - WINS

C - NBP

D - ATP


Answer: C - AppleTalk uses Name Binding Protocol (NBP) for name resolution.




Which method of media access uses Request to Send/Clear to Send packets?

A - Polling

B - Contention

C - CSMA/CD

D - CSMA/CA

E - Token Passing




Answer: D - Carrier-Sense Multiple Access/Collision Avoidance sends requests to send, and if clear to send returned, begins transmission.




MAC Addresses are permanently embedded into devices and can never be overwritten.

A - True

B - False




B: False - Administrators have the option of modifying MAC addresses through factory supplied programs (LLA).




Which command would purge the NetBIOS name table cache and reload the LMHOSTS file into memory?

A - nbtstat -R

B - netstat -L

C - LMHOST /reload

D - None of the above; this cannot be done manually.




Answer: A - The correct command is nbtstat -R (notice the capital R, as -r is different)




Which media tester is also known as "Fox and Hound" equipment?

A - Wire Map Tester

B - Tone Generator

C - Multifunction Cable Tester

D - Continuity Tester


Answer: B - Tone Generators use two devices, one that generates the tone(fox), and one that probes the tone (hound)




Which statements are true of SLIP? (Choose all that apply)

A - Provides encrypted passwords.

B - Operates at Physical layer

C - Operates at Data-link layer

D - Transports TCP/IP over serial connections


Answers: B,C,D - SLIP operates at both the Physical and Data-link Layers, and transfer TCP/IP over serial connections.




What is the main difference between CHAP and MS-CHAP?

A - Mutual Authentication

B - Username/Password never cross the wire

C - Uses shared secrets

D - Only MS-CHAP is an improvement over PAP


Answer: A - Whereas CHAP only authenticates the client, MS-CHAP authenticates the Server as well (Mutual)




Which backup type clears the archive bit? (Select all that apply)

A - Full

B - Incremental

C - Differential

D - Daily


Answer: A,B - The full and incremental clear the archive bits




Which pins on a crossover cable connect from one end to the other?

A - Pins 1 and 3 to 2 and 4

B - Pins 2 and 4 to 3 and 6

C - Pins 1 and 2 to 3 and 4

D - Pins 1 and 2 to 3 and 6


Answer: D - On crossover cables, Pins 1 and 2 should connect to Pins 3 and 6 on the other end. (And 3 and 6 connect to 1 and 2)




VLANs are a feature primarily of which type of network device?

A. Hubs

B. Switches

C. NICs

D. Cable


Answer: B. Virtual LANs are primarily a feature of network switches. because most true hubs cannot perfrom segmentation on MAC addresses, they cannot do VLANs. Although NICs are required in order to use a VLAN, VLANs are not a primary feature of them. And individual cables do not have VLANs features.




Which Network installation tool can be used to connect UTP cable to a 110 block?

A. Cable tester

B. Wire crimper

C. Media installer

D. Punchdown tool


Answer: D. A 110 block is also known as a punchdown block because of it's method of installation. Thus, the tool used to install one is a Punchsown tool with a 110 blade.




Which port number is used for DNS?

A. TCP port 10

B. UDP port 23

C. TCP port 29

D. UDP port 53


Answer: D. UDP (not TCP) port 53 is used for DNS. All others, while possibly valid port numbers, are not used for DNS.




What is the proper name for the device that connects a PC to an ISDN network?

A. Hub

B. Modem

C. Switch

D. Terminal adapter


Answer: D. Because an ISDN network is an all-digital network, it doesn't use modems but instead uses terminal adapters because they adapt the digital signal from one form to another.




You are a consultant designing a network for a company with more then 1000 user. Which 802 standard would you implement to ensure that bandwidth would be sufficient and equal without bridging or additional segments?

A. 802.1

B. 802.2

C. 802.3

D. 802.5


Answer: D. The 802.5 standard is similar to the Token Ring technology develped by IBM. That technology scales well and could handle more then 1000 users without bridging or additional segments. Also, the perfromance would be better then any of the other technologies listed




Where should Samba be intalled to allow a Microsoft operating system access to a UNIX operating system?

A. On the Microsoft client

B. On the Microsoft server

C. On the UNIX clinet

D. On the UNIX server


Answer: D. Samba is installed on a UNIX server to allow Windows clinets to be able to see UNIX device as a server on the Windows network.




The Class B address range for the First octet is ________________.


A. 1-127

B. 128-191

C. 192-223

D. 224-255


Answer: B. The range for the first octet in a Classb IP addressing scheme is 128-191. The range of 0-127 is for Class A, 192-223 is for Class C, and 224-255 is reserved for other classes and purposes.

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[edit section] Page Credits

Page Conceptualized By: spy1954 Hi spy1954,

Thanks for all your help just a quick note 127 is for loopback, classA ends at 126.