EWAN Final Exam.pdf

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Take Assessment - EWAN Final Exam - CCNA Exploration: Accessing the WAN (Version

4.0)

1 An administrator has configured a dual-stack router, employing IPv6 and IPv4 on all interfaces and RIPng for routing. All IPv6 traffic

reaches its destination as desired, but only directly connected IPv4 networks can be reached. What is the cause of this problem?

All interfaces have been configured with the incorrect IPv4 addresses.

When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are shut down in favor of the newer technology.

RIPng is incompatible with dual-stack technology.

RIP needs to be configured in addition to RIPng to successfully use IPv4.

Refer to the exhibit. R1 is performing NAT Overload for the 10.1.1.0/24 inside network. Host A and Host B are both trying to

communicate with the web server using a source port of 1234. If the packet from Host A arrives at R1 first, what happens to the packet

from Host B?

It is dropped.

It is queued until the session of Host A is completed and the port becomes available.

It is translated, keeping the source port number 1234.

It is assigned the first available port number in its range.

3 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?

show interfaces s0/0/0 indicates serial down, line protocol down. show controllers indicates cable type “unknown”.

show controllers indicates cable type DCE V.35. show interfaces s0/0/0 indicates serial up, line protocol down.

show controllers indicatse cable type DTE V.35. show interfaces s0/0/0 indicates serial up, line protocol down.

show controllers indicates cable type DTE V.35. show interfaces s0/0/0 indicates serial down, line protocol down.

4 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.)

The router forwards the frame to all ports in the network and learns the address from the reply frame.

The destination host IP address is embedded in the DLCI.

The router searches Inverse ARP tables for maps of DLCIs to IP addresses.

A table of static mappings can be searched.

The router broadcasts a request for the required IP address.

Refer to the exhibit. To solve split horizon routing issues, the Frame Relay network has been redesigned to include subinterfaces. The

appropriate frame-relay map commands have been configured on each router. Site to site pings are not successful. What will fix the

problem?

The subinterfaces must be given addresses in separate subnets.

The no ip split-horizon command must be issued on S0/0/0 on R2.

The DLCI numbers on each end of the PVCs must match.

The addressing has to be changed to publicly routable addresses.

Refer to the exhibit. Which two statements are true regarding the configuration shown? (Choose two.)

Before Layer 3 protocols are negotiated, the routers test the quality of the link.

After the quality of the link is tested, LCP negotiates the compression and authentication options.

Before Layer 3 protocols are negotiated, the routers authenticate using a three-way handshake.

After LCP negotiations are complete, the IP connection shows as OPEN.

When data exchange is complete, NCP terminates the link.

Refer to the exhibit. A network administrator is trying to configure a router to use SDM but it is not functioning correctly. What could be

the problem?

The username and password are not configured correctly.

The authentication method is not configured correctly.

The HTTP timeout policy is not configured correctly.

The vtys are not configured correctly.

Refer to the exhibit. This serial interface is not functioning correctly. Based on the output shown, what is the most likely cause?

interface reset

improper queuing strategy

unplugged cable

PPP negotiation failure

9 What two events can occur when a Frame Relay switch detects its queue filling faster than it can process data? (Choose two.)

Frames in excess of the CIR are not accepted by the switch.

Frames with the DE bit set are dropped from the switch queue.

Frames with the FECN and BECN bits set are dropped from the switch queue.

The switch sets the FECN bit on all frames it receives on the congested link and sets the BECN bit on all frames it places on the

congested link.

The switch sets the FECN bit on all frames it places on the congested link and sets the BECN bit on all frames it receives on the

congested link.

Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request entering interface s0/0/0, destined for

an FTP server at IP address 192.168.1.5?

It matches the incoming packet to the access-list 101 permit ip any 192.168.1.0 0.0.0.255 statement, continues comparing the

packet to the remaining statements in ACL 101 to ensure that no subsequent statements prohibit FTP, and then allows the packet

in interface s0/0/0.

It matches the incoming packet to the access-list 201 permit any any statement and allows the packet in interface s0/0/0.

It matches the incoming packet to the access-list 101 permit ip any 192.168.1.0 0.0.0.255 statement, ignores the remaining

statements in ACL 101, and allows the packet in interface s0/0/0.

It reaches the end of ACL 101 without matching a condition and drops the packet because there is no access-list 101 permit any

any statement.

Refer to the exhibit. What VPN feature is being represented?

digital certificates

encapsulation

encryption

hashing

tunneling

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