Quiz-Session14

What is the recommended Cisco best practice for configuring an OSPF-enabled router so that each router can be easily identified when troubleshooting routing issues?

• Configure a value using the router-id command.

• Use the highest active interface IP address that is configured on the router.

• Use a loopback interface configured with the highest IP address on the router.

• Use the highest IP address assigned to an active interface participating in the routing process.

An administrator is configuring single-area OSPF on a router. One of the networks that must be advertised is 192.168.223.0 255.255.254.0. What wildcard mask would the administrator use in the OSPF network statement?

• 0.0.7.255

• 0.0.1.255

• 0.0.15.255

• 0.0.31.255

What is the format of the router ID on an OSPF-enabled router?

• a unique phrase with no more than 16 characters

• a 32-bit number formatted like an IPv4 address

• an 8-bit number with a decimal value between 0 and 255

• a character string with no space

After modifying the router ID on an OSPF router, what is the preferred method to make the new router ID effective?

• HQ# copy running-config startup-config

• HQ# resume

• HQ# clear ip ospf process

• HQ# clear ip route

What is a benefit of multiarea OSPF routing?

• Routers in all areas share the same link-state database and have a complete picture of the entire network.

• Topology changes in one area do not cause SPF recalculations in other areas.

• A backbone area is not required.

• Automatic route summarization occurs by default between areas.

The IT department is reporting that a company web server is receiving an abnormally high number of web page requests from different locations simultaneously. Which type of security attack is occurring?

• phishing

• social engineering

• DDoS

• spyware

What type of malware has the primary objective of spreading across the network?

• virus

• worm

• Trojan horse

• botnet

Which type of hacker is motivated to protest against political and social issues?

• hacktivist

• cybercriminal

• script kiddie

• vulnerability broker

What is a ping sweep?

• a network scanning technique that indicates the live hosts in a range of IP addresses.

• a software application that enables the capture of all network packets that are sent across a LAN.

• a query and response protocol that identifies information about a domain, including the addresses that are assigned to that domain.

• a scanning technique that examines a range of TCP or UDP port numbers on a host to detect listening services.

In what type of attack is a cybercriminal attempting to prevent legitimate users from accessing network services?

• address spoofing

• MITM

• session hijacking

• DoS