Computer Operator Exam Set Networking

In this Computer Operator questions and Answers Networking SET-1, you’ll know the 25 most significant Multiple Choice Questions (MCQ) which may be asked in any competitive exams of Computer Operator or Assistant Computer Operator conducted by the general public Service Commission PSC of Nepal or other organizations.

Computer Operator Exam Set

Multiple Choice Questions with Answers

PSC Nepal

1. The twisted pair cable in which metal casing improves casing improves the penetration of noise or cross talk
   1. UTP
   1. STP
   1. Both of above
   1. None of above
2. The ray of light refract and moves closes to the surface then the angle of the incident is ___ than critical angle
   1. Equal
   1. Greater
   1. None
   1. Less
3. Which of the following network device that connects two LAN segments of the same protocol?
   1. Hub
   1. Switch
   1. Bridge
   1. Modem
4. Which of the following network device has the functionality of a bridge and router?
   1. Router
   1. Bridge
   1. Hub
   1. Switch
5. Cookie is made by ___ and eaten by
   1. Client-client
   1. Server-client
   1. Client- server
   1. Server-Server
6. The size of TCP segment header ranges between
   1. 20 byte and 60 bytes
   1. 20 byte and 70 bytes
   1. 10 byte and 60 bytes
   1. 20 byte and 80 bytes
7. Communication offered by
   1. Simplex
   1. Half duplex
   1. Full duplex
   1. None of above
8. Each IP packet must contain
   1. Source
   1. Destination
   1. Both of above
   1. None of above
9. Port number used by NTP is
   1. 132
   1. 123
   1. 134
   1. 124
10. Which of the following is network identification?
    1. User ID
    1. Password
    1. OTP
    1. Fingerprint
11. A collection of the hyperlinked document on the internet called
    1. WWW
    1. Web browser
    1. Webpage
    1. Hypertext
12. Which can be used as software
    1. Router
    1. Firewall
    1. Switch
    1. Hub
13. Which of the following is not field of UDP?
    1. Checksum
    1. Option
    1. Client
    1. Destination
14. UDP is
    1. Connectionless
    1. Connection
    1. Both of above
    1. None of above
15. You being a network administrator, your client wants you to suggest either switch or Hub to be used in a medium-sized network. Which device will you recommend to such network?
    1. Hub
    1. Switch
    1. Bridge
    1. Modem
16. Which of the following device lies in OSI layer 2 that is used as center device in star topology?
    1. Hub
    1. Switch
    1. Router
    1. Bridge
17. RG-59 is used in
    1. TV cable
    1. Router
    1. Telephone
    1. Monitor
18. If 10 files are transferred from server A to client B in the same session. The number of TCP connection between A and B is
    1. 9
    1. 12
    1. 11
    1. 10
19. In the IPV4 addressing format, the number iof network allowed under Class C address is
    1. 2^8
    1. 2^21
    1. 2^7
    1. 2^14
20. 143 number port refers to
    1. IMAP
    1. POP3
    1. FTP
    1. SMTP
21. Bluetooth is an example of
    1. CAN
    1. LAN
    1. SAN
    1. PAN
22. FTP lies in which OSI layer
    1. Transport
    1. Session
    1. Application
    1. Data Link
23. The port number of FTP is
    1. 20
    1. 21
    1. 25
    1. 123
24. Many desktop and operating system includes which protocol?
    1. IPV4
    1. CSMA
    1. FTP
    1. IPV6
25. Which of the following is most common internet protocol?
    1. FTP
    1. SMTP
    1. TCP/IP
    1. UDP