Test 6 Cisco
Which statement is true about Cisco IOS ping indicators?
'U' may indicate that a router along the path did not contain a route to the destination address and that the ping was unsuccessful.
When configuring SSH on a router to implement secure network management, a network engineer has issued the login local and transport input ssh line vty commands. What three additional configuration actions have to be performed to complete the SSH configuration? (Choose three.)
-Generate the asymmetric RSA keys. -Configure the correct IP domain name. -Create a valid local username and password database.
An employee complains that a Windows PC cannot connect to the Internet. A network technician issues the ipconfig command on the PC and is shown an IP address of 169.254.10.3. Which two conclusions can be drawn? (Choose two.)
-The PC cannot contact a DHCP server. -The PC is configured to obtain an IP address automatically.
Identify the steps needed to configure a switch for SSH.
1. Create a local user 2. Generate RSA 3. Configure a domain name 4. Use `transport input ssh` command 5. Use `login local` command
Which network service automatically assigns IP addresses to devices on the network?
DHCP (dynamic host configuration protocol)
By following a structured troubleshooting approach, a network administrator identified a network issue after a conversation with the user. What is the next step that the administrator should take?
Establish a theory of probable causes.
An administrator decides to use "WhatAreyouwaiting4" as the password on a newly installed router. Which statement applies to the password choice?
It is strong because it uses a passphrase.
A technician is to document the current configurations of all network devices in a college, including those in off-site buildings. Which protocol would be best to use to securely access the network devices?
SSH
A ping fails when performed from router R1 to directly connected router R2. The network administrator then proceeds to issue the show cdp neighbors command. Why would the network administrator issue this command if the ping failed between the two routers?
The network administrator wants to verify Layer 2 connectivity.
Which statement describes the ping and tracert commands?
Tracert shows each hop, while ping shows a destination reply only.
A network engineer is analyzing reports from a recently performed network baseline. Which situation would depict a possible latency issue?
an increase in host-to-host ping response times
On which two interfaces or ports can security be improved by configuring executive timeouts? (Choose two.)
console ports, vty ports
What is an accurate description of redundancy?
designing a network to use multiple paths between switches to ensure there is no single point of failure
What is considered the most effective way to mitigate a worm attack?
download security updates from the operating system vendor and patch all vulnerable systems
A user is redesigning a network for a small company and wants to ensure security at a reasonable price. The user deploys a new application-aware firewall with intrusion detection capabilities on the ISP connection. The user installs a second firewall to separate the company network from the public network. Additionally, the user installs an IPS on the internal network of the company. What approach is the user implementing?
layered
When applied to a router, which command would help mitigate brute-force password attacks against the router?
login block-for 60 attempts 5 within 60
What feature of SSH makes it more secure than Telnet for a device management connection?
login information and data encryption
Which example of malicious code would be classified as a Trojan horse?
malware that was written to look like a video game
Which attack involves a compromise of data that occurs between two end points?
man-in-the-middle
An administrator is troubleshooting connectivity issues and needs to determine the IP address of a website. What is the best command to use to accomplish the task?
nslookup
Users are complaining that they are unable to browse certain websites on the Internet. An administrator can successfully ping a web server via its IP address, but cannot browse to the domain name of the website. Which troubleshooting tool would be most useful in determining where the problem is?
nslookup
A network engineer is troubleshooting connectivity issues among interconnected Cisco routers and switches. Which command should the engineer use to find the IP address information, host name, and IOS version of neighboring network devices?
show cdp neighbors detail
Which firewall feature is used to ensure that packets coming into a network are legitimate responses to requests 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
What information about a Cisco router can be verified using the show version command?
the value of the configuration register
What is the purpose of a small company using a protocol analyzer utility to capture network traffic on the network segments where the company is considering a network upgrade?
to document and analyze network traffic requirements on each network segment
Why would a network administrator use the tracert utility?
to identify where a packet was lost or delayed on a network
What is the purpose of the network security authentication function?
to require users to prove who they are
What is the difference between a virus and a worm?
worms self-replicate but viruses do not
