Quiz-7

Which component is designed to protect against unauthorized communications to and from a computer?

• • port scanner

• • antimalware

• • antivirus

• • firewall

What type of attack may involve the use of tools such as nslookup and fping?

• • access attack

• • reconnaissance attack

• • denial of service attack

• • worm attack

Which example of malicious code would be classified as a Trojan horse?

• • malware that was written to look like a video game

• • malware that requires manual user intervention to spread between systems

• • malware that attaches itself to a legitimate program and spreads to other programs when launched

• • malware that can automatically spread from one system to another by exploiting a vulnerability in the target

What is the difference between a virus and a worm?

• Viruses self-replicate but worms do not.

• • Worms self-replicate but viruses do not.

• • Worms require a host file but viruses do not.

• • Viruses hide in legitimate programs but worms do not.

What is the purpose of the network security authentication function?

• • to require users to prove who they are

• • to determine which resources a user can access

• • to keep track of the actions of a user

• • to provide challenge and response questions

What feature of SSH makes it more secure than Telnet for a device management connection?

• • confidentiality with IPsec

• • stronger password requirement

• • random one-time port connection

• • login information and data encryption

What is the role of an IPS?

• • detecting and blocking of attacks in real time

• • connecting global threat information to Cisco network security devices

• • authenticating and validating traffic

• • filtering of nefarious websites

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 version

• • show ip route

• • show interfaces

• • show cdp neighbors detail

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?

• • debug all

• • logging synchronous

• • show running-config​

• • terminal monitor

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?

• • netstat

• • tracert

• • nslookup

• • ipconfig