What are three types of packet delays that occur in a networ

第1题：

第2题：

A packet is evaluated against three user-defined terms within a firewall filter and no match is found. What correctly describes the action the firewall filter will take for this packet?（）

• A、The filter will permit the packet and take no additional action
• B、The filter will reject the packet and send an ICMP message back to the sender
• C、The filter will discard the packet and take no additional action
• D、The filter will permit the packet and write a log entry to the firewall log

第3题：

第4题：

Businesses face three types of economic impacts as a result of hacks or intrusions： immediate，short-term， and long-term. Which two best describe short-term economic impacts that can becaused by a security breach？（）

• A、 loss of retail sales
• B、 delays in receiving checks
• C、 disruption of business operations
• D、 loss of suppliers or customers

第5题：

An inbound access list has been configured on a serial interface to deny packet entry for TCP and UDP ports 21, 23 and 25. What types of packets will be permitted by this ACL (Choose three.)（）。

• A、FTP
• B、Telnet
• C、SMTP
• D、DNS
• E、HTTP
• F、POP3

第6题：

第7题：

A packet is evaluated against three user-defined terms within a firewall filter and no match is found. What correctly describes the action the firewall filter will take for this packet?（）

• A、The filter will permit the packet and take no additional action.
• B、The filter will reject the packet and send an ICMP message back to the sender.
• C、The filter will discard the packet and take no additional action.
• D、The filter will permit the packet and write a log entry to the firewall log.

第8题：

第9题：

What are the three main types of networks that must be considered when defining a security policy？

第10题：

What are three types of packet delays that occur in a network？ （）

• A、timing
• B、queuing
• C、differential
• D、serialization
• E、packetization
• F、propagation