ITP4928 Quiz 2

Which protocol will terminate the PPP link after the exchange of data is complete?

Select one:

a. NCP

b. IPCP

c. IPXCP

d. LCP

 

How does PPP interface with different network layer protocols?

Select one:

a. by encoding the information field in the PPP frame

b. by using separate NCPs

c. by negotiating with the network layer hander

d. by specifying the protocol during link establishment through LCP

 

In which situation would the use of PAP be preferable to the use of CHAP?

Select one:

a. when multilink PPP is used

b. when plain text passwords are needed to simulate login at the remote host

c. when a network administrator prefers it because of ease of configuration

d. when router resources are limited

 

Which of the followings is an advantage of using PPP on a serial link instead of HDLC?

Select one:

a. Higher speed transmission

b. Option for session establishment

c. Fixed-size frames

d. Option for authentication

 

Which command can be used to view the cable type that is attached to a serial interface?

Select one:

a. Router(config)# show controllers

b. Router(config)# show interfaces

c. Router(config)# show ip interface

d. Router(config)# show ip interface brief

 

What is an advantage of Frame Relay WAN technology compared with leased lines?

Select one:

a. It offers a guaranteed direct electrical circuit from end to end.

b. It provides permanent dedicated capacity to the customers.

c. It supports both voice and data traffic.

d. It uses one interface to connect to several remote sites.  

 

A router interface connects to a Frame Relay network over a preconfigured logical circuit that does not have a direct electrical connection from end to end. Which type of circuit is being used?

Select one:

a. Full mess

b. Hub and spoke

c. PVC 

d. SVC

 

Which technology allows a Layer 3 IPv4 address to be dynamically obtained from a Layer 2 DLCI?

Select one:

a. Inverse Address Resolution Protocol

b. Neighbor Discovery

c. Inverse Neighbor Discovery

d. Address Resolution Protocol

 

Which of the followings is a function provided by Local Management Interface (LMI) that is used in Frame Relay networks?

Select one:

a. mapping of DLCIs to network addresses.

b. exchange of information about the status of virtual circuits. 

c. error notification.

d. congestion notification.

 

 

A network administrator uses the following command to configure a Frame Relay connection on a router towards the service provider:
R1(config-if)# frame-relay map ip 209.165.200.225 102 broadcast

What is the purpose of using the broadcast keyword?

Select one:

a. to enable dynamic IP address-ot-DLCI- mapping

b. to support IP address to MAC address resolution for the interface in the service provider site

c. to enable VoIP packet transmission across the link

d. to support dynamic routing protocol updates across the link

 

 

Which type of NAT maps a single inside local address to a single inside global address?

Select one:

a. Static ----------------

b. Dynamic

c. Overloading

d. Port address translation

 

What is the purpose of port forwarding?

Select one:

a. Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN. --------------------------

b. Port forwarding allows users to reach servers on the Internet that are not using standards port numbers.

c. Port forwarding allows for translating inside local IP addresses to outside local addresses.

d. Port forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN.

 

 

Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?

Select one:

a. Dynamic NAT

b. Static NAT

c. Port forwarding

d. PAT -------------------------------

 

When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?

Select one:

a. All users can access the server.

b. The first user gets disconnected when the seventh users makes the request.

c. No users can access the server.

d. The request to the server for the seventh user fails. ------------------

 

When NAT is used in a small office, which address type is used for hosts on the local LAN?

Select one:

a. Global public IP address

b. Both private and public IP address --------------------

c. Private IP address

d. Internet-routable address