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