CCNA 3 Module (3-5)

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?

DDoS

What causes a buffer overflow?

attempting to write more data to a memory location than that location can hold

Which objective of secure communications is achieved by encrypting data?

confidentiality

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

worm

What commonly motivates cybercriminals to attack networks as compared to hactivists or state-sponsored hackers?

financial gain

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

hacktivist

What is a ping sweep?

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

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

DoS

Which requirement of secure communications is ensured by the implementation of MD5 or SHA hash generating algorithms?​

integrity

If an asymmetric algorithm uses a public key to encrypt data, what is used to decrypt it?

a private key

Refer to the exhibit. Which two ACLs would permit only the two LAN networks attached to R1 to access the network that connects to R2 G0/1 interface? (Choose two.)

access-list 1 permit 192.168.10.0 0.0.0.127

access-list 5 permit 192.168.10.0 0.0.0.63

access-list 5 permit 192.168.10.64 0.0.0.63