Networking 1000+ MCQ with answer for GMAT

1. Twisted-pair cable uses what type of connector?
A. RJ-11
B. XT-20
C. RJ-45
D. RJ-50
Answer : C

2. How many 64-Kbps channels are used on an ISDN BRI?
A. 1
B. 2
C. 3
D. 4
Answer : B

3. Which function is not supported by E-mail?
A. authentication
B. composition
C. Disposition
D. Displaying
Answer : A

4. The generic domain name for air transport industry is ________.
A. biz
B. air
C. aero
D. fly
Answer : C

5. Select the class C IP address from the following:
A. 122.10.8.25
B. 170.5.88.2
C. 191.5.26.1
D. 207.67.112.55
Answer : D

6. TCP protocol is responsible for connection-oriented communication
A. True.
B. False.
C.
D.
Answer : A

7. Which of the following is required to communicate between two computers?
A. Communications software
B. Protocol
C. Communication hardware
D. All of the above including access to transmission medium
Answer : D

8. Which of the following states suggests that the connection has been ended either at the
request of the client or for any other reason?
A. Selected state
B. Authenticated state
C. Logout state
D. Non-authenticated state
Answer : C

9. Which of the following provides a structure for conveying message through TCP/IP network
to host?
A. Address Resolution protocol (ARP)
B. Internet Control Message Protocol (ICMP)
C. Bootstrap Protocol (BOOTP)
D. Dynamic Host Configuration Protocol (DHCP)
Answer : D

10. _____________ command is used by the client to transfer the job across to the server.
A. Any upper layer protocol
B. User datagram protocol
C. Transmission Control protocol
D. Remote Shell protocol
Answer : D

11. AppleTalk protocol configures hosts in zones on the network.
A. True.
B. False.
C.
D.
Answer : A

12. What can be used in the place of DNS to resolve host names to IP addresses?
A. WINS
B. LMHosts
C. Hosts
D. DHCP
Answer : C

13. ICMP messages require ………………. levels of encapsulation
A. One
B. Two
C. Three
D. Four
Answer : B

14. What is the distance limitation of Cat5 UTP?
A. 1 km
B. 100 km
C. 100 m
D. 100 foot
Answer : C

15. Which of the following headers does a router look at to find how to route a data packet?
A. Ethernet frame header
B. MAC address
C. Application header
D. IP header
Answer : D

16. _______ body looks after the protocol identifiers used over Internet.
A. Transmission Control Protocol
B. Telnet protocol
C. Internet Protocol
D. Network Control Protocol
Answer : D

17. What is the range of multicast addressing?
A. 223.0.0.0 through 240.255.255.255
B. 244.0.0.0 through 239.255.255.266
C. 224.1.1.1 through 239.555.255.255
D. 224.0.0.0 through 239.255.255.255
Answer : D

18. ADSL uses high-speed Internet service phone lines
A. True.
B. False.
C.
D.
Answer : A

19. What is attenuation?
A. cable noise
B. cable shortage
C. loss of signal strength
D. unwanted signals on the network
Answer : C

20. What is the default port for Telnet?
A. 23
B. 21
C. 25
D. 80
Answer : A

21. Data Transmission is not a layer in the OSI model
A. True.
B. False.
C.
D.
Answer : A

22. A network's Internet connection uses a 128-Kbps Basic Rate Interface (BRI). What type of connection is this?
A. DSL
B. Cable modem
C. ISDN
D. T1
Answer : C

23. Class C network address class supports 65,534 hosts.
A. True.
B. False.
C.
D.
Answer : B

24. Which is the port used by POP3?
A. 69
B. 110
C. 143
D. 443
Answer : B

25. Which of the following SIP request terminates a call?
A. ACK
B. BYE
C. INVITE
D. CANCEL
Answer : B

26. Which class does the IP address 202.119.22.31 belong to?
A. Class A
B. Class B
C. Class C
D. APIPA
Answer : C

27. Internet Research Task Force (IRTF) body looks after ________.
A. The research projects of TCP/IP suit
B. Technical related issues
C. Development of standards like Requests for Comments
D. Maintenance of Internet
Answer : A

28. Which of the following can support many concurrent B-channel links and one 64 Kbps Dchannel?
A. ISDN Basic Rate Interface (BRI)
B. ISDN Primary Rate Interface (PRI)
C. Point-to-Point circuit (PPP)
D. ISDN NRZ encoding
Answer : B

29. What is the default port for Telnet?
A. 23
B. 21
C. 25
D. 80
Answer : A

30. Following are the advantages of tree topology
i) Point-to-point wiring for individual segments.
ii) Supported by several hardware and software venders.
iii) Easy to install and wire
A. i) only
B. i) and ii) only
C. iii) only
D. i) ,ii) and iii)
Answer : B

31. A router receives an IP packet with source IP address 130.45.3.3 and destination IP address 202.23.4.16. The router cannot find the destination IP address in its routing table. Which ICMP message should be sent?
A. Time stamp request
B. Router solicitation
C. Destination Unreachable
D. Parameter problem on a datagram
Answer : C

32. E-mail is an example of ………………………… mode of communication where one party can send a note to another person and the recipient need not be online to receive the e-mail.
A. asynchronous
B. synchronous
C. full duplex
D. either A or B
Answer : A

33. Which OSI model layer provides for encryption and decryption of data?
A. Data-link
B. Transport
C. Presentation
D. Application
Answer : C

34. 80 is the well-known port number for the HTTP service.
A. True.
B. False.
C.
D.
Answer : A

35. T1 makes up 24 channels.
A. True.
B. False.
C.
D.
Answer : A

36. ARP is defined in RFC _____ and it is a current internet standard, ________
A. RFC-37, STD 903
B. RFC-903, STD 37
C. RFC 826; STD 37
D. RFC 37; STD 826
Answer : C

37. Which of the following request in Session Initiation Protocol (SIP) queries the capabilities of
servers?
A. CANCEL
B. ACK
C. OPTIONS
D. PRACK
Answer : C

38. Which of the following connectors is used by UTP on a Fast Ethernet network?
A. ST
B. BNC
C. RJ-45
D. RJ-11
Answer : C

39. You've taken your Windows 2000 laptop to a client's network and plugged it in. Your computer is configured for an IP network over 100BaseT using DHCP. You can't connect, even though the client says that DHCP is working on his 100BaseT network. What should
A. Use Ipconfig /release to release the old DHCP address.
B. Use Winipcfg and click Release to release the old DHCP address.
C. Use Ifconfig to initialize the NIC.
D. Use Tracert to determine the problem.
Answer : A

40. In Secure Electronic Transaction, the description of the purchase and cost is contained in
________ message.
A. Authorization
B. Purchase order
C. Inquiry
D. Capture
Answer : A

41. Strings enclosed in _______ quotation marks indicate single tokens.
A. Alphanumeric
B. Morse code
C. ASCII
D. Binary
Answer : C

42. Which cable type is immune to outside interference and crosstalk?
A. Thinnet
B. Twisted pair
C. Fiber optic
D. Thicknet
Answer : C

43. Which of the following protocols were designed for terminal emulation to connect dissimilar systems?
A. Domain Name System
B. FTP
C. Telnet
D. Control Message Protocol
Answer : C

44. Select the class C IP address from the following:
A. 122.10.8.25
B. 170.5.88.2
C. 191.5.26.1
D. 207.67.112.55
Answer : D

45. Which of the following protocols are considered unreliable or connectionless?
A. UDP
B. TCP
C. FTP
D. TFTP
Answer : A

46. You are browsing www.microsoft.com on a machine named host.contoso.org.. What is the order of domain name resolution?
A. Contoso.com, contoso.org, microsoft.com, com
B. Contoso.com, org, microsoft.org, org
C. Contoso.org, org, root [.], com, microsoft.com
D. Microsoft.com, com, org, contoso.org
Answer : C

47. Which of the following is the IEEE specification for wireless networks?
A. 802.3
B. 802.5
C. 802.2
D. 802.11b
Answer : D

48. What is the maximum size of IP header in the UDP Datagram format?
A. 40 bytes
B. 50 bytes
C. 60 bytes
D. 70 bytes
Answer : C

49. You're asked to install a Citrix MetaFrame XP server. What protocol will clients use to connect and run graphical terminal emulation to the new server?
A. ICA
B. Telnet
C. RAS
D. HTTP
Answer : A

50. In ----------------------- configuration, the switch begins to forward the packet as soon as it is received. No error checking is performed on the packet, so the packet is moved through very quickly.
A. cut-free
B. franment-free
C. store-and-forward
D. cut-through
Answer : D