14. Which of the following would be needed to block excessive traffic from a particular protocol?
(A)Flood guard
(B) Loop protection
(C) ACL
(D) 802.1X

複選題15. Which of the following issues must be addressed in any remote access method or technology? (hoose two.) (A) Encryption (B) Loop protection (C) Authentication (D) Traffic flooding

16. Which one of the following terms is used for impersonating a host or user?(A)Smurf attack(B) Man-in-the-middle(C) Session hijacking(D) Spoofing

17.ll of the following are characteristics of a man-in-the-middle (MITM) attack,except:(A) Intercepting data(B) Altering and retransmitting data(C) Spoofing both sides of the communications session(D) Flooding the network with ICMP packers

18. Intercepting a user's credentials and retransmitting them in the hopes ofauthenticating as a _________ attack.(A)session hijacking(B) replay(C) man-in-the-middle(D) spoofing

複選題19. Which of the following can be used to conduct a denial-of-service attack? (hoose all that apply.) (A) Specially crafted traffic (B) Malware (C) Large amounts of traffic (D) Man-in-the middle attacks

20. You have received reports that a user's host is very sluggish and unresponsive.fter troubleshooting other items, you decide to use a sniffer to examine the network traffic coming into the host. You see that large amounts of ICMP traffic, in the form of ping replies, are being sent to the host. The host is having trouble processing all of this traffic, causing it to slow down. Which of the following is the most likely explanation for this? (A) Faulty network card (B) Man-in-the-middle attack (C) Smurf attack (D) SYN flood

21. In a SYN food attack, which of the following is a receiving host expecting back as a reply to complete the TP three-way handshake? (A) Repeated SYN segments (B) A SYN/ACK segment (C) A SYN segment (D) An ACK segment

22. Which of the following would be considered a distributed denial-of-service attack?(A)An attacker uses her own machine to attack another machine.(B) An attacker uses a network of 20 malware-infected hosts to attack a web server.(C) An attacker uses a SYN flood attack against a target's external router.(D) An attacker uses a MITM attack against an unsuspecting rival hacker.

23. Which of the following describes a network device that intercepts user or host requests and then makes those requests to other hosts or networks on behalf of the user? (A) Proxy (B) Firewall (C) NIDS (D) NIPS

24. Which of the following is an advanced form of proxy and can also perform content filtering and web application attack prevention functions? (A) NIPS (B) Firewall (C) Web security gateway (D) NIDS

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