Data Communication & Networking MCQs Set-5

1. The destination address and source address field is similar to
  • IEEE 802.3 or CSMA/CD bus
  • IEEE 802.4 or token bus
  • IEEE 802.5 or token ring
  • IEEE 802.6 or MAN protocol
2. IPv4 Address is
  • 8 bit
  • 16 bit
  • 32 bit
  • 64 bit
3. Which function allows dumping of invalid packets for a specific network instead of forwarding
  • Forwarding function
  • Filtering function
  • Both a & b
  • None of these
4. The word SLIP stands for
  • Serial Line IP 
  • Standard Line IP
  • Serial Link IP
  • Standard Link IP
5. What is the port number of the FTP
  • 25
  • 23
  • 20/21
  • 27960
6. The SMDS is similar to which transfer mode
  • Synchronous transfer mode
  • Asynchronous transfer mode
  • Both a & b
  • None of these
7. PDUs contain
  • Source address
  • Destination address
  • Both a & b
  • None of these
8. Frame relay indicates network congestion using two flags namely ________ bits in data frames
  • Forward Explicit Congestion Notification(FECN)
  • Backward Explicit Congestion Notification(BECN)
  • Both a & b
  • None of these
9. ISDN is a group of __________ standards relating to digital transmission across conventional copper wire telephone lines, as also other media
  • CCITT
  • ITU
  • Both a & b
  • None of these
10. The B-channel is capable of carrying both
  • Voice
  • Data
  • Both a & b 
  • None of these