Length of Port address in TCP/IP is _________

A. 4bit long
B. 16bit long
C. 32bit long
D. 8 bit long

Which of the following protocols uses both TCP and UDP?

A. FTP
B. SMTP
C. Telnet
D. DNS

The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI model?

A. Application
B. Host to host
C. Internet
D. Network access

What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model?

A. Application
B. Host to host
C. Internet
D. Network access

Which OSPF show command describes a list of OSPF adjacencies?

A. Show ip ospf interface
B. Show ip ospf
C. Show ip route
D. Show ip ospf neighbor

Which two commands are required for basic OSPF configuration?

A. €?[network mask] area [area-id]€? and €?router ospf [process-id]€?
B. €?[wildcard-mask] area [area-id]€? and €?[network mask] area [area-id]€?
C. Only €?router ospf [process-id]€?
D. €?[wildcard-mask] area [area-id]€? and €?router ospf [process-id]€?

Which field is NOT a field within an OSPF packet header?

A. Packet length
B. Router id
C. Authentication type
D. Maxage time

At which interval does OSPF refresh LSAs?

A. 10 seconds
B. 30 seconds
C. 30 minutes
D. 1 hour

DBD packets are involved during which two states?

A. Exstart and exchange
B. Loading and two-way
C. Init and full
D. Down and loading

The Hello protocol sends periodic updates to ensure that a neighbor relationship is maintained between adjacent routers.

A. True
B. False
C.
D.