Networking 1000+ MCQ with answer for NEET

1. What are the subnet mask in dotted decimal notation for /20 networks?
A. 255.255.252.0
B. 255.255.255.0
C. 255.255.254.0
D. 255.255.240.0
Answer : D

2. 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

3. What is the code used for Interpret As Command (IAC)?
A. 253
B. 255
C. 240
D. 241
Answer : B

4. 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

5. 25 is used by SMTP
A. True.
B. False.
C.
D.
Answer : A

6. You have a network card with the connector in question 43, and it also has a 15 pin female connector, the pins being in two rows. What type of card is it?
A. ethernet
B. token ring
C. arcnet
D. dlc
Answer : A

7. If the organization allocates 10 bits as subnet number, to identify a physical network, then the organization can have at the most……………. networks and each of these networks that can support only…………………...hosts.
A. 1022 networks, 62 hosts.
B. 62 networks, 1022 hosts.
C. 4094 networks, 14 hosts.
D. 14 networks, 4094 hosts.
Answer : A

8. Internet e-mail system based on the ……………………………………………..
A. FTP
B. Simple Mail Transfer Protocol (SMTP)
C. POP
D. Both SMTP and POP
Answer : B

9. In TCP segment format _______indicates start of data.
A. RST
B. ACK
C. URG
D. Data Offset
Answer : D

10. The Point-to-Point Protocol (PPP) is described in which of the following?
A. RFC 3390 AND RFC 3392
B. RFC 1661 AND RFC 1662
C. RFC 2490 AND RFC 2492
D. RFC 2225 AND RFC 2226
Answer : B

11. Which Layer is Responsible for Congestion Control?
A. Network Layer
B. Datalink Layer
C. Transport Layer
D. D) Application layer
Answer : C

12. 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

13. Which of the following protocol was developed to overcome limitations of Routing
Information Protocol (RIP)?
A. Border Gateway Protocol (BGP)
B. Exterior Gateway Protocol (EGP)
C. Enhanced Interior Gateway Routing Protocol (EIGRP)
D. Open Shortest Path First (OSPF)
Answer : A

14. 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

15. ____________ developed to provide a loop-free method of exchanging routing information
between autonomous systems.
A. Enhanced Interior Gateway Routing Protocol (EIGRP)
B. User Datagram Protocol (UDP)
C. Border Gateway Protocol (BGP)
D. User Datagram Protocol (UDP)
Answer : C

16. Which layer use User Datagram Protocol (UDP) and Transmission Control Protocol (TCP)?
A. Network layer
B. Physical layer
C. TCP/IP transport layer
D. Data link layer
Answer : C

17. You have a network card with only one connector, which looks like a place to plug an oversized phone cord. What type of card is it?
A. token ring
B. decnet
C. d. ethernet
D. fiber optic
Answer : C

18. What is the maximum length of thick Ethernet cable before a signal booster is needed?
A. 500 feet
B. 500 meters
C. 1000 feet
D. 2 miles
Answer : B

19. Which of the following protocols is described in RFC 793?
A. Address Resolution Protocol (ARP)
B. Transmission Control Protocol (TCP)
C. Bootstrap Protocol (BOOTP)
D. User Datagram Protocol (UDP)
Answer : B

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

21. Which of these is an example for unguided transmission?
A. coaxial cable
B. optical fibers
C. wireless
D. twisted pairs
Answer : C

22. To communicate across a TCP/IP network, you must have a DNS server and DNS clients installed.
A. True.
B. False.
C.
D.
Answer : B

23. 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

24. How many number of host/machine can be attached to a network using a class B address?
A. 65,536
B. 128
C. 256
D. 16,777,216
Answer : A

25. ________allows receiver to inform sender about the successful receiving of all the
segments.
A. SACK-permitted Option
B. Window scale option
C. Selective Acknowledgment (SACK)
D. Maximum segment size option
Answer : C

26. Which of these cable is/are used to connect devices to hubs and switches.
A. crossover
B. straight-through
C. co-axial
D. both A) and B)
Answer : D

27. --------------- is/are used for error detection.
A. Parity bit
B. checksum
C. both A) and B)
D. neither A) nor B).
Answer : C

28. Which of the following protocol is used by Integrated Services for signaling of the
reservation messages?
A. Link state protocols
B. Distance Vector Multicast Routing Protocol (DVMRP)
C. Resource Reservation Protocol (RSVP)
D. Static routing protocols
Answer : C

29. 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

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

31. Which of the following defines a family of standards for 100 Mbps fiber optic LANs that
provides the physical layer and media access control sub-layer of the data link layer, as
defined by the ISO/OSI Model?
A. Ethernet
B. IEEE 802
C. Fiber Distributed Data Interface (FDDI)
D. Point-to-Point Protocol (PPP)
Answer : C

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

33. 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

34. FDDI operates on 100 Mbps.
A. True.
B. False.
C.
D.
Answer : A

35. Which is the port used by HTTPS?
A. 123
B. 143
C. 69
D. 443
Answer : D

36. In flags message attribute, which of the following flag indicates that message has been
completed?
A. \Deleted
B. \Recent
C. \Flagged
D. \Draft
Answer : D

37. Which of the following is a media type that is most susceptible to interference?
A. Shielded twisted pair (STP)
B. Fiber optics
C. Unshielded twisted pair (UTP)
D. Coaxial
Answer : C

38. A modem is a card within a PC that converts the …………... the computer produces to ………………….. that can pass over telephone system.
A. Data, signal
B. Analog signal, digital signal
C. Digital signal, analog signal
D. signal, data
Answer : C

39. FTP servers by default listen on port ________ for incoming connections from FTP clients.
A. 20
B. 21
C. 23
D. 25
Answer : B

40. Telnet protocol uses ___________ representation for the function Synchronize.
A. SYC
B. SYNCH
C. SNZ
D. SY
Answer : B

41. Your Web server is also configured as an FTP server. What part of the data packet will tell the server which application the data is meant for?
A. Port
B. IP address
C. MAC address
D. Frame header
Answer : A

42. Which type of connector is used on 10Base2 networks?
A. SC
B. BNC
C. RJ-45
D. RJ-11
Answer : B

43. FDDI operates on 100 Mbps.
A. True.
B. False.
C.
D.
Answer : A

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

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

46. Which field in Domain Name System message format specifies the class of query?
A. Type
B. Class
C. Rdlength
D. Rdata
Answer : B

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

48. Which is the port used by HTTPS?
A. 123
B. 143
C. 69
D. 443
Answer : D

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

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