Which of the following doesn’t define a method of transmitting data that violates a security policy?
Answer
Backdoor channel
Session hijacking
Covert channel
Overt channel
Question 2
Question
Which virus type is only executed when a specific condition is met?
Answer
Sparse infector
Multipartite
Metamorphic
Cavity
Question 3
Question
Which of the following propagates without human interaction?
Answer
Trojan
Worm
Virus
MITM
Question 4
Question
Which of the following don’t use ICMP in the attack? (Choose two.)
Answer
SYN flood
Ping of Death
Smurf
Peer to peer
Question 5
Question
Which of the following is not a recommended step in recovering from a malware infection?
Answer
Delete system restore points.
Back up the hard drive.
Remove the system from the network.
Reinstall from original media.
Question 6
Question
Which of the following is a recommendation to protect against session hijacking? (Choose two.)
Answer
Use only nonroutable protocols.
Use unpredictable sequence numbers.
Use a file verification application, such as Tripwire.
Use a good password policy.
Implement ICMP throughout the environment.
Question 7
Question
Which of the following attacks an already-authenticated connection?
Answer
Smurf
Denial of service
Session hijacking
Phishing
Question 8
Question
How does Tripwire (and programs like it) help against Trojan attacks?
Answer
Tripwire is an AV application that quarantines and removes malware immediately.
Tripwire is an AV application that quarantines and removes malware after a scan.
Tripwire is a file-integrity-checking application that rejects malware packets intended for the kernel.
Tripwire is a file-integrity-checking application that notifies you when a system file has been altered, potentially indicating malware.
Question 9
Question
Which of the following DoS categories consume all available bandwidth for the system or service?
Answer
Fragmentation attacks
Volumetric attacks
Application attacks
TCP state-exhaustion attacks
Question 10
Question
During a TCP data exchange, the client has offered a sequence number of 100, and the server has offered 500. During acknowledgments, the packet shows 101 and 501, respectively, as the agreed-upon sequence numbers. With a window size of 5, which sequence numbers would the server willingly accept as part of this session?
Answer
102 through 104
102 through 501
102 through 502
Anything above 501
Question 11
Question
Which of the following is the proper syntax on Windows systems for spawning a command shell on port 56 using Netcat?
Answer
nc -r 56 -c cmd.exe
nc -p 56 -o cmd.exe
nc -L 56 -t -e cmd.exe
nc -port 56 -s -o cmd.exe
Question 12
Question
Which of the following best describes a DRDoS?
Answer
Multiple intermediary machines send the attack at the behest of the attacker.
The attacker sends thousands upon thousands of SYN packets to the machine with a false source IP address.
The attacker sends thousands of SYN packets to the target but never responds to any of the return SYN/ACK packets.
The attack involves sending a large number of garbled IP fragments with overlapping, oversized payloads to the target machine.
Question 13
Question
Which of the following best describes a teardrop attack?
Answer
The attacker sends a packet with the same source and destination address.
The attacker sends several overlapping, extremely large IP fragments.
The attacker sends UDP Echo packets with a spoofed address.