31. Which of the following IP addresses are defined by RFC 1918 as private addresses? (Choose three.)
192.168.146.0/22
172.10.25.0/16
172.31.0.0/16
20.0.0.0/8
10.172.92.8/29
32. After configuring a dialup ISDN circuit, a network associate begins testing the dialup connection. When attempting to ping a host on the remote network, the local router does not attempt to dial the remote access server. Which of the following are possible errors in this configuration? (Choose three.)
PPP authentication is not properly configured.
No dialer map is configured.
The ISDN circuit connected to the remote access server is busy.
No interesting traffic is defined.
No route is determined to the remote network.
A wrong number is configured in the dial string.
33. Two routers are connected through a Frame Relay, point-to-point PVC. The remote router is from a vendor other than Cisco. Which interface command is required to configure the link between the Cisco router and the other router?
frame-relay pvc multipoint
frame-relay pvc point-to-point
encapsulation frame-relay cisco
encapsulation frame-relay ietf
frame-relay lmi-type ansi
34. Which circuit-switched WAN technology is often used to provide a backup for a leased line and additional capacity during peak usage times?
X.25
DSL
ISDN
cable modem
35. After the ISDN BRI interface is configured, which command can be used to verify that the router is communicating correctly with the ISDN switch?
show dialer
show isdn status
show interfaces bri0/0:1
show interfaces serial0/0.1
36. A system administrator needs to configure the regional office with ISDN for DDR connections to three remote sites. Each remote site requires different IP subnets, different encapsulations, and different authentication methods. The sites will not be connected at the same time. The company would like to accomplish this in the most cost effective manner. What method can the system administrator use to accomplish this task using the fewest B channels?
Install and configure a PRI.
Install and configure a BRI interface with separate SPIDs for each remote site.
Install and configure a BRI with multiple switch types in global configuration.
Install and configure a BRI using dialer profiles.
Install and configure a separate BRI for each remote site.
37. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure static NAT for all ten users.
Configure dynamic NAT for ten users.
Configure dynamic NAT with PAT.
Configure DHCP and static NAT.
What the administrator wants to do cannot be done.
38. Which of the following are characteristics of Frame Relay? (Choose two.)
circuit-switched
connection oriented
OSI Layer 3
packet-switched
reliable
39. Which of the following is the order for the three phases of establishing a PPP serial link with authentication?
authentication, link-establishment, network layer protocols
authentication, network layer protocols, link-establishment
network layer protocols, link-establishment, authentication
network layer protocols, authentication, link-establishment
link-establishment, authentication, network layer protocols
link-establishment, network layer protocols, authentication
192.168.146.0/22
172.10.25.0/16
172.31.0.0/16
20.0.0.0/8
10.172.92.8/29
32. After configuring a dialup ISDN circuit, a network associate begins testing the dialup connection. When attempting to ping a host on the remote network, the local router does not attempt to dial the remote access server. Which of the following are possible errors in this configuration? (Choose three.)
PPP authentication is not properly configured.
No dialer map is configured.
The ISDN circuit connected to the remote access server is busy.
No interesting traffic is defined.
No route is determined to the remote network.
A wrong number is configured in the dial string.
33. Two routers are connected through a Frame Relay, point-to-point PVC. The remote router is from a vendor other than Cisco. Which interface command is required to configure the link between the Cisco router and the other router?
frame-relay pvc multipoint
frame-relay pvc point-to-point
encapsulation frame-relay cisco
encapsulation frame-relay ietf
frame-relay lmi-type ansi
34. Which circuit-switched WAN technology is often used to provide a backup for a leased line and additional capacity during peak usage times?
X.25
DSL
ISDN
cable modem
35. After the ISDN BRI interface is configured, which command can be used to verify that the router is communicating correctly with the ISDN switch?
show dialer
show isdn status
show interfaces bri0/0:1
show interfaces serial0/0.1
36. A system administrator needs to configure the regional office with ISDN for DDR connections to three remote sites. Each remote site requires different IP subnets, different encapsulations, and different authentication methods. The sites will not be connected at the same time. The company would like to accomplish this in the most cost effective manner. What method can the system administrator use to accomplish this task using the fewest B channels?
Install and configure a PRI.
Install and configure a BRI interface with separate SPIDs for each remote site.
Install and configure a BRI with multiple switch types in global configuration.
Install and configure a BRI using dialer profiles.
Install and configure a separate BRI for each remote site.
37. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure static NAT for all ten users.
Configure dynamic NAT for ten users.
Configure dynamic NAT with PAT.
Configure DHCP and static NAT.
What the administrator wants to do cannot be done.
38. Which of the following are characteristics of Frame Relay? (Choose two.)
circuit-switched
connection oriented
OSI Layer 3
packet-switched
reliable
39. Which of the following is the order for the three phases of establishing a PPP serial link with authentication?
authentication, link-establishment, network layer protocols
authentication, network layer protocols, link-establishment
network layer protocols, link-establishment, authentication
network layer protocols, authentication, link-establishment
link-establishment, authentication, network layer protocols
link-establishment, network layer protocols, authentication
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