多项选择题Which algorithms did TKIP add to the 802.11 specification? ()

A. key mixing
B. AES-based encryption
C. anti-replay sequence counter
D.  message integrity check
E. cyclic redundancy check


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1.多项选择题Whenever a failover takes place on the ASA (configured for failover), all active connections are droppedand clients must re-establish their connections unless: ()

A. The ASA is configured for Active-Standby failover.
B.  The ASA is configured for Active-Activefailover.
C. The ASA is configured for Active-Active failover and a state failover link has been configured.
D. The ASA is configured for Active-Standby failover and a state failover link has been configured.
E. The ASA is configured to use a serial cable as the failover link.
F. The ASA is configured for LAN-Based failover

2.多项选择题Whattwo things must you do onthe router before generating an SSH key with the "crypto key generate rsa"IOS command? ()

A. Configure the SSH version that the router will use
B. Configure the host name of the router
C. Enable AAA Authentication
D. Configure the default IP domain name that the router will use
E. Enable SSH transport support onthe vty lines

3.单项选择题What is the main reason for using the "ip ips deny-action ips-interface" IOS command?()

A. To selectively apply drop actions to specific interfaces
B. To enable IOS to droptraffic for signatures configured with the Drop action
C. To support load-balancing configurations in which traffic can arrive via multipleinterfaces 
D. This is nota valid IOS command

4.多项选择题Which of the following is true about the Cisco IOS-IPS functionality? ()

A. The signatures available are built into the IOS code.
B. Toupdate signatures youneed to install a new IOS image
C. To activate new signatures you download a new Signature DefiitionFile (SDF) from Cisco’s web site
D. Loading and enabling selected IPS signatures is user configurable
E. Cisco IOS onlyprovides Intrusion Detection functionality
F. Cisco IOS-IPS requires a network module installed in your router running sensor software

5.单项选择题What is true about a Pre-Block ACLconfigured when setting up your sensor toperform IP Blocking?()

A. The Pre-Block ACL is overwritten when a blockingaction is initiatied by the sensor
B. The blocking ACL entries generated by the sensor override the Pre-Block ACL entries
C. The Pre-Block ACL entries override the blocking ACL entries generated by the sensor
D. The Pre-Block ACL is replaced by the Post-Block ACL when a blocking actionis initiated bythe sensor
E. You can not configure a Pre-Block ACL when configuring IP Blockingon your sensor

6.多项选择题Which two IP multicast addresses belong to the group represented by the MAC address of 0x01-00-5E-15-6A-2C? ()

A. 224.21.106.44
B. 224.25.106.44
C. 233.149.106.44
D. 236.25.106.44
E. 239.153.106.44

7.单项选择题A network administrator is using a LAN analyzer to troubleshoot OSPF router exchange messages sent to ALLOSPF ROUTERS. To what MAC address are these messages sent?()

A. 00-00-1C-EF-00-00
B. 01-00-5E-00-00-05
C. 01-00-5E-EF-00-00
D. EF-FF-FF-00-00-05
E. EF-00-00-FF-FF-FF
F. FF-FF-FF-FF-FF-FF

8.单项选择题According to RFC 3180, what is the correct GLOP address for AS456?()

A. 224.0.4.86
B. 224.4.86.0
C. 233.1.200.0
D. 239.2.213.0
E. 239.4.5.6

9.多项选择题What are two important guidelines to follow when implementing VTP?()

A. CDPmust be enabled on all switches in theVTP management domain.
B. All switches in the VTPdomain must run the same version of VTP.
C. When using secure mode VTP, only configure management domain passwords onVTP servers.
D. EnablingVTP pruning on a server willenable the feature for the entire management domain.
E. Use of theVTPmulti-domain feature should be restricted to migration and temporary implementation.

10.多项选择题What are two key characteristics of VTP? ()

A.VTP messages are sent out all switch-switch connections.
B.VTP L2 messages are communicated to neighbors using CDP.
C.VTP manages addition, deletion, and renaming of VLANs 1 to 4094.
D.VTP pruning restricts flooded traffic, increasing available bandwidth.
E.VTP V2 can only be used in a domain consisting of V2 capable switches.
F.VTP V2 performs consistency checks on all sources of VLAN information.