1. Refer to the exhibit. IPv6 address 2006:1::1/64 eui-64 has been configured on the router FastEthernet0/0 interface. Which statement accurately describes the EUI-64 identifier configuration?

The configuration will derive the interface portion of the IPv6 address from the MAC address of the interface.

2. Refer to the exhibit. Which address or addresses represent the inside global address?

209.165.20.25

3. Your organization is issued the IPv6 prefix of 2001:0000:130F::/48 by your service provider. With this prefix, how many bits are available for your organization to create subnetworks?

16

4. What are two benefits of NAT? (Choose two.)

It saves public IP addresses.
It adds a degree of privacy and security to a network.

5. What is true regarding the differences between NAT and PAT?

PAT uses unique source port numbers to distinguish between translations.

6. A network administrator wants to connect two IPv6 islands. The easiest way is through ... Читать дальше »

1. Which two Layer 1 requirements are outlined in the Data-over-Cable Service Interface Specification (DOCSIS)? (Choose two.)

channel widths
modulation techniques

2. Which is an example of symmetric-key encryption?

pre-shared key

3. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)

allocate an additional channel
subdivide the network to reduce users on each segment

4. While monitoring traffic on a cable network, a technician notes that data is being transmitted at 38 MHz. Which statement describes the situation observed by the technician?

Data is being transmitted from the subscriber to the headend.

5. After conducting research to learn about common remote connection options for teleworkers, a network administrator has decided to implement remote access over broadband to establish VPN connections over the public Internet. What is the result of this solution?

The connection has increas ... Читать дальше »

1. Excessive broadcasts are generally a symptom of a problem at which layer?

data link

2. Refer to the exhibit. Users at Branch B are reporting trouble accessing a corporate website running on a server that is located at HQ. HQ and Branch A users can access the website. R3 is able to ping 10.10.10.1 successfully but not 10.10.10.2. The users at Branch B can access servers at Branch A. Which two statements are true aboutthe troubleshooting efforts? (Choose two.)

Frame Relay at R3 and R2 should be tested to narrow the scope of the problem.
An ACL entry error could cause the failure at Layer 4 in either R3 or R2.

3. What is one example of a physical layer problem?

incorrect clock rate

4. Which two components should be taken into consideration when establishing a network baseline? (Choose two.)

information about the network design
expected performance under normal operating conditions

5. Refer to the exhibit. Which two steps should be taken dur ... Читать дальше »

1. Refer to the exhibit. What will be the effect of the configuration that is shown?
Users attempting to access hosts in the 192.168.30.0/24 network will be required to telnet to R3.

2. Which three parameters can ACLs use to filter traffic? (Choose three.)

protocol suite
source address
destination address

3. Refer to the exhibit. How does this access list process a packet with the source address 10.1.1.1 and a destination of 192.168.10.13?

It is dropped because it does not match any of the items in the ACL.

4 .Which two statements are correct about extended ACLs? (Choose two)

Extended ACLs evaluate the source and destination addresses.
Port numbers can be used to add greater definition to an ACL.

5. Where should a standard access control list be placed?

close to the destination

6. Which three statements describe ACL processing of packets? (Choose three.)

An implicit deny any rejects any packet that does not match any A ... Читать дальше »

1. What is the best defense for protecting a network from phishing exploits?

Schedule training for all users.

2. What are three characteristics of a good security policy? (Choose three.)

It defines acceptable and unacceptable use of network resources.
It communicates consensus and defines roles.
It defines how to handle security incidents.

3. The Cisco IOS image naming convention allows identification of different versions and capabilities of the IOS. What information can be gained from the filename c2600-d-mz.121-4? (Choose two.)

The software is version 12.1, 4th revision.
The IOS is for the Cisco 2600 series hardware platform.

4. Refer to the exhibit. What is accomplished when both commands are configured on the router?

The commands disable the services such as echo, discard, and chargen on the router to prevent security vulnerabilities.

5. Which two conditions should the network administrator verify before attempting to upgrade a ... Читать дальше »

1. Which best describes the benefit of using Frame Relay as opposed to a leased line or ISDN service?

Customers only pay for the local loop and the bandwidth they purchase from the network provider.

2. Which statement about Frame Relay subinterfaces is correct?

Point-to-point subinterfaces act like leased lines and eliminate split-horizon routing issues.

3. What best describes the use of a data-link connection identifier (DLCI)?

locally significant address used to identify a virtual circuit

4. What is created between two DTEs in a Frame Relay network?

virtual circuit

5. Which two items allow the router to map data link layer addresses to network layer addresses in a Frame Relay network? (Choose two.)

Inverse ARP
LMI status messages

6. Refer to the exhibit. What can be known about the configuration of router R1 from the output?

The command encapsulation frame-relay ietf has been used on the Serial 0/0/0 interface.

7. Refer to the ex ... Читать дальше »

1. Refer to the exhibit. What can be concluded about the function of the Serial 0/0/0 interface on the router after the commands are entered?

The serial link will be closed if the number of received packets at the destination node falls below 90 percent of the packets that are sent.

2. Refer to the exhibit. While troubleshooting a serial interface, a technician enters the command show interface serial 0/0/0 . If the interface is in DCE mode, what two problems are likely to cause the indicated problem? (Choose two.)

The remote CSU or DSU has failed.
A timing problem has occurred on the cable.

3. Refer to the exhibit. What statement is true regarding the output shown?

One router has suggested PAP authentication, and the other has accepted authentication but suggested CHAP
authentication.

4. Why are serial connections preferred over parallel connections for long transmission lengths?

Parallel connections are subject to clock skew and to crosstalk ... Читать дальше »

1. Which statement about WAN protocols is correct?

Most WAN protocols use HDLC or a variant of HDLC as a framing mechanism.

2. Which statement is true of the functionality of the layers in the hierarchical network model?

The distribution layer aggregates WAN connections at the edge of the campus.

3. Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?

ATM

4. A U.S. company requires a WAN connection used only to transfer sales data from individual stores to the home office. All transfers will occur after business hours. The required bandwidth for this connection is estimated to be less than 38 kbps. Which type of connection requires the least investment for this company?

analog dialup

5. What is an advantage of packet-switched technology over circuit-switched technology?

Packet-switched networks can efficiently use multiple routes inside a service provider network.

6. Which s ... Читать дальше »

1. What will a wireless client transmit to discover the available WLAN networks?

probe request

2. Which function is provided by a wireless access point?

converts data from 802.11 to 802.3 frame encapsulation

3. Why is security so important in wireless networks?

Wireless networks broadcast data over a medium that allows easy access.

4. Refer to the exhibit. When configuring the wireless access point, which setting does the network administrator use to configure the unique identifier that client devices use to distinguish this wireless network from others?

Network Name (SSID)

5. Which access method does a wireless access point use to allow for multiple user connectivity and distributed access?

CSMA/CA

6. What does a wireless access point use to allow WLAN clients to learn which networks are available in a given area?

beacon

7. Which three devices do many wireless routers incorporate? (Choose three.)

gateway for connecting to other netwo ... Читать дальше »

1. Refer to the exhibit. What two conclusions can be drawn from the output that is shown? (Choose two.)

Both of the directly connected routes that are shown will share the same physical interface of the router.
Inter-VLAN routing between hosts on the 172.17.10.0/24 and 172.17.30.0/24 networks is successful on this network.

2. A router has two FastEthernet interfaces and needs to connect to four VLANs in the local network. How can this be accomplished using the fewest number of physical interfaces without unnecessarily decreasing network performance?

Implement a router-on-a-stick configuration.

3. What is important to consider while configuring the subinterfaces of a router when implementing inter-VLAN routing?

The IP address of each subinterface must be the default gateway address for each VLAN subnet.

4. Refer to the exhibit. PC1 has attempted to ping PC2 but has been unsuccessful. What could account for this failure?

The encapsulation command on the ... Читать дальше »