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Friday, November 9, 2018

Networking Interview Questions for Experienced

Networking Interview Questions for Experienced

Networking Interview Questions

    Networking Interview Questions for Experienced
















Networking Interview Questions for Experienced


1.What is the principle of  'DSLAM'? 

a. Convert digital into analog signals  
b. Convert analog into digital signals 
c. Compress digital signals
d. None of the above

2.Which of the following protocol uses ping?

a. ICMP (Internet Control Message Protocol)   
b. ARP (Address Resolution Protocol)
c. TCP (Transmission Control Protocol) 
d. None of the above

3.Which of the following IP address is a private?

a. 12.0.0.5  
b. 192.168.24.43   
c. 172.15.12.16   
d. 168.172.59.29 

4.Logical or Physical arrangement of network is called.

a. Networking 
b. Routing
c. Topology   
d. None of the above

5.Which of the following is not a guided media?

a. Wireless LAN    
b. Coaxial cable
c. Fiber optical cable
d. None of the above

6.Which device is used for modulation and demodulation?

a. Bridge
b. Gateway   
c. Modem    
d. None of the above

7.Which of the following network is used in Communication channel?

a. broadcast network    
b. unicast network
c. multicast network
d. None of the above 

8.What is the minimum header size of an IP(Internet-Protocol) packet?

a. 20 bytes  
b. 36 bytes
c. 16 bytes 
d. None of the above

9.Which of the following topology uses FDDI?

a. Tree
b. Mess
c. Star
d. Ring  

10.What is the reason of Network congestion?

a. For traffic overloading  
b. For system terminates
c. For fiber cut 
d. None of the above 

11.Which of the following Topology uses Terminators?

a. Ring Topology   
b. Star Topology  
c. Bus Topology 
d. All of the above

12.Which of the following cable is supported by HFC? 

a. Coaxial cable
b. Fiber cable
c. Both Fiber cable and Coaxial cable   
d. None of the above

13.What is the standard protocol of internet?

a. TCP(Transmission Control Protocol)
b. IP(Internet Protocol)
c. MAC address 
d. TCP/IP   

14.Transport layer protocols uses which communication.

a. Process to process communication   
b. Application to application communication 
c) Pc to pc communication
d) None of the above

15.UTP (un-shielded twisted pair) is commonly used in

a. HTTP( Hyper Text Transfer Protocol)
b. FTTP(Fiber To The Premises )
c. DSL(Digital subscriber line)  
d. None of the above

16.What is the full form of CRC.

a. Coding redundancy check  
b. Coding repeated check
c. Cyclic redundancy check      
d. None of the above

17.Which of the following cable has the highest transmission speed?

a. Optical fiber cable    
b. Twisted pair cable
c. Coaxial cable  
d. None of the above

18.Each packet contains ________ address, in virtual circuit network.

a. Only destination address
b. VC(virtual circuit)  
c. Source address
d. None of the above

19.Which layer is not in the TCP / IP model, but it is in the OSI model.

a. Network layer 
b. Session layer   
c. Presentation layer
d. None of the mentioned

20.Stub network has How many entry and exit point?

a. This network has only one entry and exit point  
b. This network has only one entry and no exit point   
c. This network has more than one exit and entry point  
d. This network has more than one exit point  

21.Full form of FDDI?

a. Fiber Data Distributed Interface
b. File Data Distributed Interface
c. Fiber Distributed Data Interface   
d. None of the above

22.Below which communication modes support two-way traffic in one direction at a time?

a. Simplex   
b. Half duplex     
c. All of the above
d. None of the above

23.What is the main principle of transport layer?

a. PC to pc delivery
b. End to end delivery     
c. Begin to end delivery
d. None of the above

24.Which of the following device helps to separate a single network into two segments but lets the two segments appear as one to higher protocols?

a. Switch  
b. Modem
c. Bridge 
d. None of the above

25.Which layer changes bits onto electromagnetic signals.

a. Session
b. Physical   
c. Application
d. Transport

26.What is used to measure the capacity of a communication channel?

a. Data flow
b. Bit capacity   
c. Bandwidth   
d. None of the above

27.Which of the following device is used to transmit Frames from one LAN to another LAN.

a. Bridge  
b. Router   
c. modem  
d. None of the above

28.The structure or format of data means?

a. Struct
b. Semantics
c. Syntax    
d. None of the above

29.Which of the following is used to find the hardware address of a local device?

a. ARP (Address Resolution Protocol)   
b. RARP (Reverse Address Resolution Protocol)
c. ICMP (Internet Control Message Protocol)
d. IP (Internet protocol) 

30.What type of RJ45 UTP cable is used to communicate between two switches?

a. Straight-through   
b. Crossover cable   
c. Both a & b
d. None of the above

31.Which layer provides Delimiting and synchronization of data exchange?

a. Presentation layer
b. Session layer   
c. Application layer
d. Network layer

32.Which of the following multiplexing technique transmits digital signals?

a. TDM (Time-Division Multiplexing) 
b. FDM (Frequency-Division Multiplexing) 
c. WDM (Wavelength-Division Multiplexing)
d. None of the above

33.Socket-style API (application programming interface) for windows is called.

a. wnsock
b. wins 
c. Winsock           
d. None of the above

34.Below Which computer network is built on the top of another network?

a. Overlay  
b. Chief
c. Prior
d. None of the above 

35.Where Backpressure technique can be applied?

a. Virtual circuit networks   
b. Closed circuit networks
c. Both a & b
d. None of the above

36.ATM uses the

a. Automated frequency division multiplexing
b. Asynchronous time division multiplexing   
c. Asynchronous space delivary multiplexing
d. none of the above

37.Communication offered by TCP (Transmission Control Protocol) is

a. Byte by byte
b. Half-duplex
c. Full-duplex   
d. None of the above

38.What is the Size of TCP segment header range?

a. 20 and 60 bytes   
b. 12 and 32 bits
c. 16 and 34 bytes 
d. 24 and 36 bits

39.The main advantage of UDP is

a. Less overload  
b. Medium overload
c. More overload 
d. None of the above

40.IP (Internet Protocol) Security works in which layer of the OSI model?

a. Physical 
b. presentation
c. session
d. Network   

 -:ANS:-

1. (b) Convert analog into digital signals
2. (a) ICMP (Internet Control Message Protocol) 
3. (b) 192.168.24.43 
4. (c) Topology 
5. (a) Wireless LAN 
6. (c) Modem
7. (a) broadcast network
8. (a) 20 bytes  
9. (d) Ring
10. (a) For traffic overloading
11. (c) Bus Topology
12. (c) Both Fiber cable and Coaxial cable 
13. (d) TCP/IP   
14. (a) Process to process communication    
15. (c) DSL(Digital subscriber line) 
16. (c) Cyclic redundancy check
17. (a) Optical fiber cable 
18. (b) VC(virtual circuit) 
19. (b) Session layer   
20. (a) This network has only one entry and exit point
21. (c) Fiber Distributed Data Interface 
22. (b) Half duplex   
23. (b) End to end delivery 
24. (c) Bridge
25. (b) Physical  
26. (c) Bandwidth     
27. (a) Bridge
28. (c) Syntax
29. (a) ARP (Address Resolution Protocol)
30. (b) Crossover cable
31. (b) Session layer
32. (a) TDM (Time-Division Multiplexing)
33. (c) Winsock 
34. (a) Overlay
35. (a) Virtual circuit networks  
36. (b) Asynchronous time division multiplexing
37. (c) Full-duplex 
38. (a) 20 and 60 bytes 
39. (a) Less overload  
40. (d) Network


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