Do You Know CCNA WAN Final? Play This Quiz
There has been a lot of information involved in your studies on the wide area network as part of your CCNA certification, but it’s time to put it all together and play this quiz to see if you have learned enough to pass your finals on the topic with flying colours. Let’s see how you do!
- 1.What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a local router that has been configured as a DHCP server?
- A.
Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router.
- B.
Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5.
- C.
The DHCP server function of the router will not issue the addresses between 172.16.4.1 and 172.16.4.5.
- D.
The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.
- 2.An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
- A.
RIPng is incompatible with dual-stack technology.
- B.
All interfaces have been configured with the incorrect IPv4 addresses.
- C.
RIPv1 or RIPv2 needs to be configured in addition to RIPng to successfully use IPv4.
- D.
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are shut down in favor of the newer technology.
- 3.
Refer to the exhibit. Which DHCP requests will R1 answer?- A.
All DHCP requests that R1 receives
- B.
Requests that are broadcast to 10.0.1.255
- C.
DNS requests with a destination of 10.0.1.3
- D.
Requests that are received on the FastEthernet 0/0 interface
- E.
Requests that come from any networks that are not listed as excluded
- 4.
Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output of the debug ip dhcp server command shows "DHCPD: there is no address pool for 10.1.1.1". What is the problem?
- A.
The 10.1.1.1 address is already configured on Fa0/0.
- B.
The default router for the 10Network pool is incorrect.
- C.
The ip helper-address must be added to Fa0/0 interface.
- D.
The pool of addresses for the 10Network pool is incorrect.
- 5.
Refer to the exhibit. The hosts in network A all have static addresses that are assigned in the 192.168.2.0./24 network. The hosts in network B are DHCP clients in the 192.168.1.0/24 network. After router R1 has been configured with the statements as shown in the exhibit, the DHCP clients are reporting that they cannot access any network resources. The hosts with static addresses cannot access any resources outside network A. What is the problem?
- A.
The DHCP scope has the wrong address pool.
- B.
The interfaces on R1 are incorrectly addressed.
- C.
The assignable DCHP addresses are all excluded.
- D.
The DCHP clients are receiving the wrong default router address.
- 6.
Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. HostA has sent a packet to Web Server. What is the destination IP address of the return packet from Web Server when it is received at the NIC on HostA?
- A.
10.1.1.2:1234
- B.
172.30.20.1:1234
- C.
172.30.20.1:3333
- D.
192.168.1.2:80
- 7.At what physical location does the responsibility for a WAN connection change from the service provider to the user?
- A.
DMZ
- B.
Local loop
- C.
CSU/DSU
- D.
Demarcation point
- 8.What three statements describe the roles of devices in a WAN? (Choose three.)
- A.
A CSU/DSU terminates a digital local loop.
- B.
A modem terminates a digital local loop.
- C.
A CSU/DSU terminates an analog local loop.
- D.
A modem terminates an analog local loop.
- E.
A router is commonly considered a DTE device.
- 9.
Refer to the exhibit. Which statement is true about the WAN switch device?
- A.
It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM or X.25 over the WAN.
- B.
It provides internetworking and WAN access interface ports that are used to connect to the service provider network.
- C.
It provides termination for the digital signal and ensures connection integrity through error correction and line monitoring.
- D.
It converts the digital signals produced by a computer into voice frequencies that can be transmitted over the analog lines of the public telephone network.
- 10.
Refer to the exhibit. An administrator is trying to connect Router1, a Cisco router, to a non-Cisco router using a serial connection. Why is the connection failing?
- A.
A loopback is not set.
- B.
The interface has been shut down.
- C.
The wrong encapsulation is being used.
- D.
Queuing cannot be used when connecting to non-Cisco devices.
- 11.Which device encodes data for transmission across the WAN service provider transmission link?
- A.
CPE
- B.
DTE
- C.
DCE
- D.
UART
- 12.
Refer to the exhibit. Why are the routers unable to establish a PPP session?
- A.
The usernames are misconfigured.
- B.
The IP addresses are on different subnets.
- C.
The clock rate is configured on the wrong end of the link.
- D.
The CHAP passwords must be different on the two routers.
- E.
Interface serial 0/0/0 on Router1 must connect to interface serial 0/0/1 on Router2.
- 13.What are the symptoms when the s0/0/0 interface on a router is attached to an operational CSU/DSU that is generating a clock signal, but the far end router on the point-to-point link has not been activated?
- A.
Show controllers indicates cable type DCE V.35. show interfaces s0/0/0 indicates serial down, line protocol down.
- B.
Show controllers indicates cable type DCE V.35. show interfaces s0/0/0 indicates serial up, line protocol down.
- C.
Show controllers indicates cable type DTE V.35. show interfaces s0/0/0 indicates serial up, line protocol down.
- D.
Show controllers indicates cable type DTE V.35. show interfaces s0/0/0 indicates serial down, line protocol down.
- 14.
Refer to the exhibit. Router1 is not able to communicate with its peer that is connected to this interface. Based on the output as shown, what is the most likely cause?
- A.
Interface reset
- B.
Improper LMI type
- C.
Encapsulation failure
- D.
Local cable unplugged
- 15.Which protocol is used to authenticate connections over serial links securely?
- A.
CHAP
- B.
HDLC
- C.
SLIP
- D.
PAP
- 16.
Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC office of ABC Company to the Orlando office?
- A.
MAC address of the Orlando router
- B.
MAC address of the DC router
- C.
192.168.1.25
- D.
192.168.1.26
- E.
DLCI 200
- 17.While configuring a Frame Relay connection, when should a static Frame Relay map be used?
- A.
The remote router is a non-Cisco router
- B.
The local router is configured with subinterfaces
- C.
Broadcast traffic and multicast traffic over the PVC must be controlled
- D.
Globally significant rather than locally significant DLCIs are being used
- 18.
Refer to the exhibit. Branch A has a Cisco router and Branch B has a non-Cisco router that is using IETF encapsulation . After the commands that are shown are entered, R2 and R3 fail to establish the PVC. The R2 LMI is Cisco, and the R3 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
- A.
The PVC to R3 must be point-to-point.
- B.
LMI types cannot be different on each end of a PVC.
- C.
A single port can only support one encapsulation type.
- D.
The IETF parameter is missing from the frame-relay map ip 192.168.1.3 203 command.
- 19.
Refer to the exhibit. Which statement is true about the status of the Frame Relay connection?
- A.
The Frame Relay connection is in the process of negotiation.
- B.
Only packets with control bit DE set are sent over the PVC. No data traffic traverses the link.
- C.
Packets marked as FECN and BECN indicate that a congestion control mechanism is enabled on the Frame Relay PVC.
- D.
The “DLCI USAGE = LOCAL” status indicates that the PVC link is not established between the interface S0/0/0.1 and the Frame Relay switch.
- 20.
Refer to the exhibit. You are a network administrator who has been tasked with completing the Frame Relay topology that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?
- A.
HQ(config-subif)#frame-relay interface-dlci 103 on Serial 0/0/0.1 HQ(config-subif)#frame-relay interface-dlci 203 on Serial 0/0/0.2
- B.
HQ(config-subif)#frame-relay interface-dlci 301 on Serial 0/0/0.1 HQ(config-subif)# frame-relay interface-dlci 302 on Serial 0/0/0.2
- C.
HQ(config-subif)#frame-relay map ip 172.16.1.1 103 broadcast on Serial 0/0/0.1 HQ(config-subif)#frame-relay map ip 172.16.2.2 203 broadcast on Serial 0/0/0.2
- D.
HQ(config-subif)#frame-relay map ip 172.16.1.1 301 broadcast on Serial 0/0/0.1 HQ(config-subif)#frame-relay map ip 172.16.2.2 302 broadcast on Serial 0/0/0.2
- 21.A router in a Frame Relay network needs to forward a message received from a host. What two methods does the router use to identify the correct VC to forward the message? (Choose two.)
- A.
The router forwards the frame to all ports in the network and learns the address from the reply frame.
- B.
The destination host IP address is embedded in the DLCI.
- C.
The router searches Inverse ARP tables for maps of DLCIs to IP addresses.
- D.
A table of static mappings can be searched.
- E.
The router broadcasts a request for the required IP address.
- 22.A company is looking for a WAN solution to connect its headquarters site with four remote sites. What advantage would dedicated leased lines provide to the customer compared to a shared Frame Relay solution?
- A.
Lower cost
- B.
Lower latency and jitter
- C.
Variable bandwidth capacity
- D.
Fewer physical router interfaces
- 23.Which two functions are provided by the Local Management Interface (LMI) that is used in Frame Relay networks? (Choose two.)
- A.
Flow control
- B.
Error notification
- C.
Congestion notification
- D.
The mapping of DLCIs to network addresses
- E.
The sending of keepalive packets to verify operation of the PVC
- 24.A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why Company A reports higher download speeds than Company B?
- A.
Company B has a higher volume of POTS voice traffic than Company A.
- B.
Company B shares the conection to the DSLAM with more clients than Company A.
- C.
Company A only uses microfilters on branch locations.
- D.
Company A is closer to the service provider.
- 25.
Refer to the exhibit. A packet is being sent from Host A to Host B through the VPN tunnel between R1 and R3. When the packet first arrives at R3, what are the source and destination IP addresses of the packet?
- A.
Source 192.168.1.2 - Destination 192.168.4.2
- B.
Source 192.168.3.1 - Destination 192.168.3.2
- C.
Source 192.168.2.1 - Destination 192.168.3.2
- D.
Source 192.168.3.1 - Destination 192.168.4.2
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