What are three features of the Cisco IOS Firewall feature set？（）

多项选择题WhichthreestatementsaboutIOSFirewallconfigurationsaretrue？（）

A.The IP inspection rule can be applied in the inbound direction on the secured interface.
B.The IP inspection rule can be applied in the outbound direction on the unsecured interface.
C.The ACL applied in the outbound direction on the unsecured interface should be an extended ACL.
D.The ACL applied in the inbound direction on the unsecured interface should be an extended ACL.
E.For temporary openings to be created dynamically by Cisco IOS Firewall，the access-list for thereturning traffic must be a standard ACL.
F.For temporary openings to be created dynamically by Cisco IOS Firewall，the IP inspection rule must be applied to the secured interface.

单项选择题Refer to the exhibit. MPLS has been configured on all routers in the domain. In order for R2 and R3 to forward frames between them with label headers, what additional configuration will be required on devices that are attached to the LAN segment?（）

A.Decrease the maximum MTU requirements on all router interfaces that are attached to the LAN segment.
B.Increase the maximum MTU requirements on all router interfaces that are attached to the LAN segment.
C.No additional configuration is required. Interface MTU size will be automatically adjusted to accommodate the larger size frames.
D.No additional configuration is required. Frames with larger MTU size will be automatically fragmented and forwarded on all LAN segments.

单项选择题Refer to the exhibit. The show mpls interfaces detail command has been used to display information about the interfaces on router R1 that have been configured for label switching. Which statement is true about the MPLS edge router R1?（）

A.Packets can be labeled and forwarded out interface Fa0/1 because of the MPLS operational status of the interface.
B.Because LSP tunnel labeling has not been enabled on interface Fa0/1， packets cannot be labeled and forwarded out interface Fa0/1.
C.Packets can be labeled and forwarded out interface Fa1/1 because MPLS has been enabled on this interface.
D.Because the MTU size is increased above the size limit， packets cannot be labeled and forwarded out interface Fa1/1.

单项选择题WhatisareasonforimplementingMPLSinanetwork？（）

A.MPLS eliminates the need of an IGP in the core.
B.MPLS reduces the required number of BGP-enabled devices in the core.
C.Reduces routing table lookup since only the MPLS core routers perform routing table lookups.
D.MPLS eliminates the need for fully meshed connections between BGP enabled devices.

多项选择题WhataretwopossibleactionsanIOSIPScantakeifapacketinasessionmatchesasignature？（）

A.reset the connection
B.forward the packet
C.check the packet against an ACL
D.drop the packet