Computer Networking Interview Questions 5

41. In which OSI model layer does NetBIOS function?

• A) Session layer
• B) Application layer
• C) Network layer
• D) Transport layer

42. In which OSI model layer does data packet framing occur?

• A) Network layer
• B) Data link layer
• C) Transport layer
• D) Physical layer

43. Which layer of the OSI model handles data translation?

• A) Transport layer
• B) Presentation layer
• C) Network layer
• D) Session layer

44. Which network utility programs provide DNS lookups?

• A) ping
• B) traceroute
• C) netstat
• D) All of these

45. Which Ethernet encoding has the highest redundancy?

• A) 4B5B
• B) 5B6B
• C) 1B2B
• D) 8B10B

46. Which statement about LANs is incorrect?

• A) LANs operate within a single building
• B) Wired LANs offer better speed and security
• C) LANs are connected using an Ethernet card
• D) LANs can transmit up to 10 Gbps

47. Which is not a function of the Network layer?

• A) Routing
• B) Addressing
• C) Packet forwarding
• D) Converting data bits into frames

48. Which statement about TCP/UDP is false?

• A) TCP is connection-oriented, UDP is connectionless
• B) TCP is reliable, UDP is unreliable
• C) Both TCP and UDP are connectionless and reliable
• D) TCP provides error checking, UDP does not

49. In which OSI model layer do routers operate?

• A) Transport layer
• B) Data link layer
• C) Network layer
• D) Application layer

50. What is the maximum header length in a TCP segment and IP datagram?

• A) 32 bytes
• B) 48 bytes
• C) 60 bytes
• D) 128 bytes