单项选择题X 纠错
A. All TCPoptions are supported， such as largewindows.
B. The server can have more than8 unique MSS values.
C. SYN cookies are not implemented as a method of defending against SYN floods.
D. SYN cookies are implemented as a method of defending against SYN floods.
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单项选择题
A. Secure desktop will create a completely separate computing environment thatwill be deleted when you are done.This ensures that no confidential data has been left on the shared/public computer.
B. Secure desktop is used to protect access to your registry and systemfiles when browsing to SSL/VPN protectedpages.
C. Secure Desktop ensures that an SSLprotected password cannotbe exploitedby a man in the middle attackusing a spoofed certificate.
D. Secure desktop hardens the operating system of the machines you are using at the time secure desktop islaunched.
多项选择题
A. NAT provides 1 to manyaddress mapping.
B. NAT provides 1 to 1 address mapping.
C. NAT is only useful forTCP/UDP and ICMP traffic.
D. NAT can be used for all IP traffic.
多项选择题
A. Content and URL filtering
B. Intrusion Prevention
C. VPN
D. Virus and Phishing protection
E. Content Caching
单项选择题
A. Preventing browsers from opening network sockets inlistening state.
B. Preventingbuffer overflows.
C. Preventingusers from entering unencrypted passwords
D. Preventing browsers from acting as client to webservers.
多项选择题
A. Open mail relays are often used for spamming.
B. ESMTP does NOT provide more security features than SMTP
C. SMTPdoes provide authenticated email sending."
D. Worms often spread via SMTP.
单项选择题
A. No vulnerable applications or operating systems
B. No viruses or worms
C. Appropriate security applications and patch levels
D. Current IPS signatures
E. Cisco Security Agent
单项选择题
A. pre-sharedkey
B. secure hash
C. SSL
D. RSA signature
单项选择题
A. group 3
B. group 1
C. group 5
D. group 7
单项选择题
A. 4 bytes for both
B. 4 bytes， and 8 bytes respectively
C. 8 bytes for both
D. 24 bytes for both
单项选择题
A. Blocking cipher andnon-blocking cipher
B. CBC cipher and EBC cipher
C. Block cipher and Stream cipher
D. Blocker cipher and Streamer cipher
E. 3DES cipher and AES cipher
