1.

Refer to the exhibit. What two pieces of information can be determined from the output that is shown? (Choose two.)

The local host is using three client sessions.

The local host is using web sessions to a remote server.

The local host is listening for TCP connections using public addresses.

The local host is using well-known port numbers to identify the source ports.

The local host is performing the three-way handshake with 192.168.1.101:1037.

2. After a web browser makes a request to a web server that is listening to the standard port, what will be the source port number in the TCP header of the response from the server?

13

53

80

1024

1728

1. What application layer protocol is commonly used to support for file transfers between a client and a server?

HTML

HTTP

FTP

Telnet

2. What are two forms of application layer software? (Choose two.)

applications

dialogs

requests

services

syntax

1. Which statements correctly identify the role of intermediary devices in the network? (Choose three.)

determine pathways for data

initiate data communications

retime and retransmit data signals

originate the flow of data

manage data flows

final termination point for data flow

2. Select the statements that are correct concerning network protocols. (Choose three.)

define the structure of layer specific PDU’s

dictate how to accomplish layer functions

outline the functions necessary for communications between layers

limit the need for hardware compatibility

require layer dependent encapsulations

eliminate standardization among vendors

1. Which of the following descriptions are true regarding the management connections on a Cisco router? (Choose three.)

They are non-network connections.

They are used to connect the router to the rest of the production network.

They are synchronous serial ports.

They are used for initial router configuration.

They are asynchronous serial ports.

They are accessed using their assigned IP address.

2. The console port can be used for which of the following? (Choose three.)

debugging.

password recovery.

routing data between networks.

troubleshooting.

connecting one router to another.

1. Which of the following LCP options can be configured for PPP? (Choose three.)

CHAP

Stacker

IPCP

CDPCP

Multilink

2. ITU-T Q.921 specifies the use of which protocol for sending control and signaling messages between the router and the ISDN switch?

HDLC

IPCP

LAPB

LAPD

NCP

SS7

1. An ISDN circuit from a branch office is remaining connected to the regional office. A network administrator determines a user has initiated a continuous ping from a desktop computer to the regional office. Which configuration change would allow the ISDN circuit to disconnect during any attempts to ping, while otherwise functioning properly?

change DDR from legacy to dialer profiles

remove the dialer list statement from the configuration

change the dialer list to exclude ICMP as interesting

disable inverse ARP

2.

Refer to the exhibit. The link between the RTR-1 and RTR-2 routers is configured as shown in the exhibit. Although the show interfaces command shows the interface status as Serial0 is up, line protocol is up, IP traffic is not crossing this link. What is the problem?

The usernames are misconfigured.

The clock rate is configured on the wrong end of the link.

The IP addresses are not in the same subnet.

Interface serial 0/0 on RTR-1 must connect to interface serial 0/1 on RTR-2.

The passwords must be different for the CHAP authentication.

The clock rate must be 56000.

1. For which platform was UNIX first marketed commercially?

workstations and servers

workstations

network servers

large mainframe systems

2. How does RMON gather statistics on a segment?

analyzes traps on the segment

polls packets on the segment

analyzes every frame on the segment

analyzes source and destination addresses

1. How does Frame Relay technology process frames that contain errors? (Choose two.)

Frame Relay services depend on the upper layer protocols to handle error recovery.

It requires the receiving device to request that the sender retransmit erroneous frames.

FECN, BECN, and DE bits are set in the frames to minimize errors.

The receiving device drops any frames that contain errors without notifying the sender.

The frame relay switch notifies the sender that errors were detected.

2. Which statement identifies a reason for using point-to-point subinterfaces in Frame Relay networks?

Subinterfaces overcome routing update and split-horizon issues that occur with multipoint logical interfaces on a single physical interface.

A point-to-point subinterface does not require an IP address and therefore saves address space.

Point-to-point subinterfaces provide greater reliability and reachability in Frame Relay networks by requiring a mesh topology for network configurations.

Point-to-point subinterfaces increase the number of DLCIs that can be configured in a Frame Relay network.

1. Which of the following correctly describes ISDN BRI? (Choose three.)

two 64 kbps B channels and one 16 kbps D channel

B channel is suitable for voice data

uses in-band signaling

uses out-of-band signaling

offers the equivalent of a T1/E1 connection

twenty-three 64 kbps B channels and one 16 kbps D channel

2. Which of the following is considered out-of-band signaling?

using a frequency outside of the rated bandwidth for transmission

transmitting data over a control channel

using a separate channel for control signals

transmitting control signals over a data channel

1. A technician is testing the functionality of a recently installed router. The technician is unable to ping the serial interface of a remote router. The technician executes the show interface serial 0/0 command on the local router and receives the following output:
Serial0/0 is up, line protocol is down(disabled)
What are possible causes for this command output? (Choose two.)

interface missing the no shutdown command

clockrate command missing

CSU/DSU failed

interface shutdown due to high error rate

cable missing

2. A technician has used Telnet to gain remote access to a router that has no connectivity on its serial interface. Which command should be issued to determine if the serial cable is connected properly?

show controllers

show processes

show run

show status