Cisco Router WAN Configuration Basics Practice exam for Cisco CCNA certification

The Cisco CCNA certification requires that you are completely familiar with WAN links of all types. CCNA certification practice exams are a great way to prepare for the Cisco CCNA certification and for jobs that will require you to install, maintain, and configure WAN links on Cisco routers and switches. This free practice exam will help you to know the Cisco WAn configurations well enough that you can productively apply your WAN knowledge to any network. The Cisco CCNA certification is an entry level certification which will equip you for the type of work that requires extensive use of WAN links.

Equipment which is owned and located at the customers facility is known as;

1. Demarc
2. Local Loop.
3. CPE or Customer Provided Equipment.
4. CPE or Customer Premises Equipment.

Which of the following is generally used for low bandwidth data transfers?

1. Leased Lines.
2. Circuit Switching.
3. Packet Switching.
4. X25.

Which technology provides features which allow for dynamic bandwidth allocation and congestion control.

1. HDLC.
2. LAPB.
3. Frame-relay.
4. ISDN.

Which technology does not provide for a network layer identification field?

1. HDLC.
2. Frame-relay.
3. LAPB.
4. PPP.

Which technology can be used over syncronous or asyncronous lines?

1. HDLC.
2. Frame-relay.
3. LAPB.
4. PPP.

True or false? Each vendor's proprietary header placed in the data field of the HDLC encapsulation allows for communication between equipment from different vendors.

1. True.
2. False.

Which sub-layer in the PPP protocol stack that corresponds to OSI layer 2 is responsible for establishing, configuring, maintaining, and terminating the point-to-point connection.

1. CCP.
2. LCP.
3. NCP.
4. CBCP.

Which of the following is not a link control protocol function or option?

1. Compression.
2. Authentication.
3. Error correction.
4. Error detection.

Select the correct order of session establishment for PPP.

1. Network layer protocol, link establishment, authentication.
2. Link establishment, authentication, network layer protocol.
3. Link establishment, network layer protocol, authentication.

Which of these two authentication techniques is the most secure?

1. CHAP.
2. PAP.

Enable the use of PPP on this serial interface.

Router (config) # interface serial 0
Router (config-if) # 
 

Enter the command that will allow the router to fallback to password authentication protocol if the challenge handshake authentication protocol should fail.

Router (config) # interface serial 0
Router (config-if) # ppp authentication chap
Router (config-if) # 
 

Frame-relay circuits are identified through the carrier cloud by the use of;

1. IP to DLCI mappings.
2. SVC.
3. PVC.
4. DLCI.

Enter the command that allows you to use a Frame-relay type that is compatible with the equipment from vendors other than Cisco.

Router (config) # interface serial 0
Router (config-if) # 
 

Which LMI status message reveals a problem with the communication between the switching office and the remote router?

1. Active state.
2. Inactive.
3. Deleted.

Which sub-interface type uses a single subnet?

1. Multipoint.
2. Point-to-point.

Enter the command that assigns a data link connection identifier of number 202 to a sub-interface.

Router (config) # interface serial 0.202 point-to-point
Router (config-subif) # 
 

Enter the command that makes it possible for mixed vendor routers to communicate across a frame-relay circuit without using inverse arp. Use dlci 202 and IP address 172.16.1.1.

Router (config) # interface serial 0.202 point-to-point
Router (config-subif) # frame-relay 
 

Which bit will be set by the provider's frame-relay switch when it needs to inform the source router that the network is congested.

1. FECN.
2. BECN.
3. DE.
4. LSB.

What threshold has been exceeded when the frame-relay switch has set the DE bit?

 
1. The discard eligibility rate.
2. The committed burst rate.
3. The committed information rate.

Enter the command that lets you view the number of FECN, BECN, and DE bits for both in and outbound packets.

Router # 
 

Enter the command that, including other statistics, lets you view the number of LMI status enquiries sent and the number of LMI status updates received.

Router # 
 

Enter the command that allows you to view the LMI type as well as the keepalive interval on router interface serial 0.

Router # 
 

Enter the command that allows you to list all the relationships between IP address and DLCI's on a router.

Router # 
 

Enter the command you would use to view the exchange of LMI statistics between routers.

Router #