CCNA Chapter 11

A network administrator is issuing the login block-for 180 attempts 2 within 30 command on a router. Which threat is the network administrator trying to prevent?

A user who is trying to guess a password to access the router

When should an administrator establish a network baseline?

At regular intervals over a period of time

Which statement is true about CDP on a Cisco device?

CDP can be disabled globally or on a specific interface.

Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer?

Capture traffic during peak utilization times to get a good representation of the different traffic types. Perform the capture on different network segments.

A newly hired network technician is given the task of ordering new hardware for a small business with a large growth forecast. Which primary factor should the technician be concerned with when choosing the new devices?

Devices with support for modularity

Which type of network threat is intended to prevent authorized users from accessing resources?

DoS attacks

A network administrator for a small company is contemplating how to scale the network over the next three years to accommodate projected growth. Which three types of information should be used to plan for network growth?

Documentation of the current physical and logical topologies. Analysis of the network traffic based on protocols, applications, and services used on the network. Inventory of the devices that are currently used on the network.

Some routers and switches in a wiring closet malfunctioned after an air conditioning unit failed. What type of threat does this situation describe?

Environmental

Which two steps are required before SSH can be enabled on a Cisco router?

Give the router a host name and domain name. Generate a set of secret keys to be used for encryption and decryption.

Match the type of information security threat to the scenario. Data Loss

Installing virus code to destroy surveillance recordings for certain days

A network technician issues the C:\> tracert -6 www.cisco.com command on a Windows PC. What is the purpose of the -6 command option?

It forces the trace to use IPv6.

Which two actions can be taken to prevent a successful network attack on an email server account?

Never send the password through the network in a clear text. Limit the number of unsuccessful attempts to log in to the server.

Match the type of information security threat to the scenario. Information Theft

Obtaining trade secret documents illegally

Match the type of information security threat to the scenario. Identity Theft

Pretending to be someone else by using stolen personal information to apply for a credit card

Match the type of information security threat to the scenario. Disruption of Service

Preventing users from accessing a website by sending a large number of link requests in a short period

Refer to the exhibit. An administrator is trying to troubleshoot connectivity between PC1 and PC2 and uses the tracert command from PC1 to do it. Based on the displayed output, where should the administrator begin troubleshooting?

R1

Which network design consideration would be more important to a large corporation than to a small business?

Redundancy

Refer to the exhibit. Baseline documentation for a small company had ping round trip time statistics of 36/97/132 between hosts H1 and H3. Today the network administrator checked connectivity by pinging between hosts H1 and H3 that resulted in a round trip time of 1458/2390/6066. What does this indicate to the network administrator?

Something is causing a time delay between the networks.

Which firewall feature is used to ensure that packets coming into a network are legitimate responses initiated from internal hosts?

Stateful packet inspection

Which command should be used on a Cisco router or switch to allow log messages to be displayed on remotely connected sessions using Telnet or SSH?

Terminal monitor

A network technician issues the arp -d * command on a PC after the router that is connected to the LAN is reconfigured. What is the result after this command is issued?

The ARP cache is cleared.

A network administrator for a small campus network has issued the show ip interface brief command on a switch. What is the administrator verifying with this command?

The status of the switch interfaces and the address configured on interface vlan 1

What is the purpose of the network security authentication function?

To require users to prove who they are

Fill in the blank. _______ defines the protocols and technologies that implement the transmission of voice data over an IP network

VoIP

Which two traffic types require delay sensitive delivery?

Voice Video

Fill in the blank. The show ______ command provides information about the amount of free nvram and flash memory with the permissions for reading or writing data.

file systems

Fill in the blank. The ________ command that is issued on a router is used to verify the value of the software configuration register.

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