Networking MCQ Solved Paper for RRB NTPC

1. Which of these is a feature of hubs?
A. Hubs amplify the incoming signal.
B. Hubs understand frames, packets or headers
C. All lines coming into a Hub must operate at a same speed.
D. all of these
Answer : C

2. SMTP protocol is responsible for sending email across the Internet
A. True.
B. False.
C.
D.
Answer : A

3. 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

4. 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

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

6. 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

7. 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

8. 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

9. The key concern in the design of transmission system is -------------- and ---------------
A. data rate ,distance
B. speed, accuracy
C. accuracy, simplicity
D. distance , cost
Answer : A

10. 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

11. Which directory service is used in Windows 2000 Server?
A. Active Directory
B. SAM
C. NDS
D. Bindery
Answer : A

12. What is the default subnet mask for a class A network?
A. 255.0.0.0
B. 255.224.0.0
C. 255.255.0.0
D. 255.255.255.0
Answer : A

13. 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

14. What is the maximum length of twisted-pair cable before a signal booster is needed? Select all that apply.
A. 25 meters
B. 100 meters
C. 328 feet
D. 1000 feet
Answer : B

15. How many table entries are supported by global routing table in CIDR?
A. 90,000
B. 80,000
C. 70,000
D. 60,000
Answer : D

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

17. What is the IEEE specification for Ethernet?
A. 802.1
B. 802.2
C. 802.3
D. 802.4
Answer : C

18. In ________ routing, the tunnel creates a bridge through areas that do not support
multicast traffic.
A. Internet
B. MBONE
C. Border Gateway Protocol
D. Multicast OSPF
Answer : B

19. Which of the following address supports 254 hosts on each of 2 million networks?
A. Class D addresses
B. Class A addresses
C. Class C addresses
D. Class B addresses
Answer : C

20. Videoconferencing is an example for…………………… communication
A. Simplex
B. Half duplex
C. Full duplex
D. serial
Answer : C

21. 80 is the well-known port number for the HTTP service.
A. True.
B. False.
C.
D.
Answer : A

22. ________is a multicast extension to OSPF Version 2.
A. Multicast Source Discovery Protocol (MSDP)
B. Distance Vector Multicast Routing Protocol (DVMRP)
C. Multicast OSPF (MOSPF)
D. Internet Group Management Protocol (IGMP)
Answer : C

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

24. 802.5 project standard defines Token Ring.
A. True.
B. False
C.
D.
Answer : A

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

26. Thick Ethernet cable uses what type of connector? Select all that apply.
A. RJ-45
B. AUI
C. DB-15
D. BNC
Answer : B

27. 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

28. 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

29. Which of the following is a simplex protocol?
A. Multicast Source Discovery Protocol (MSDP)
B. User datagram protocol(UDP)
C. Resource Reservation Protocol (RSVP)
D. Internet Group Management Protocol (IGMP)
Answer : C

30. Identify the topology and network type that uses a central hub with cables connected to workstations.
A. Physical star topology, Ethernet
B. Physical bus topology, Ethernet
C. Physical ring topology, token ring
D. Physical ring topology, Ethernet
Answer : A

31. Pure ALOHA has a maximum throughput of -----------
A. 16.4 %
B. 18.4 %
C. 7.4 %
D. 1 %
Answer : B

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

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

34. 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

35. Which of the following can be used to transfer files from a Unix server?
A. FTP
B. Telnet
C. IPX
D. Netstat
Answer : A

36. Thinnet coaxial cable uses what type of connector?
A. RJ-45
B. AUI
C. MSAU
D. BNC
Answer : D

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

38. 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

39. Which of the following IP addresses are used by multicast devices?
A. Class D
B. Class C
C. Class B
D. Class A
Answer : A

40. ________acts as source and destination for IP traffic.
A. Interface
B. Node
C. Host
D. Router
Answer : C

41. You're configuring a dial-up connection to an ISP. Which of the following protocols is used?
A. PPTP
B. PPP
C. VPN
D. IPSec
Answer : B

42. What is the default subnet mask for a class B network?
A. 255.0.0.0
B. 255.255.0.0
C. 255.255.255.0
D. 255.255.192.0
Answer : B

43. Which of the following can provide a backbone network of 600 meters in length without using repeaters?
A. 10BaseT
B. 100BaseT
C. 10Base5
D. 100BaseFX
Answer : D

44. 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

45. 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

46. 127.0.0.1 address is reserved for internal loopback functions.
A. True.
B. False.
C.
D.
Answer : A

47. DSL stands for ------------------------
A. data subscriber lines
B. dual subscriber lines
C. delay subscriber lines
D. digital subscriber lines
Answer : D

48. When collection of various computers seems a single coherent system to its client, then it is called
A. computer network
B. distributed system
C. both (a and (b
D. none of the mentioned
Answer : B

49. Which of the following fields holds the packets of several protocols?
A. NLPID field
B. Pad field
C. UI (0x03) field
D. Q.922 field
Answer : A

50. 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