多项选择题

Refer to the exhibit. Given this DSL router's sub-interface configuration, select the two true statements. Assume the interface is UP/UP.()

A.The interface must be configured as point-to-multipoint
B.The sustained cell rate and the burst rate are equal
C.The router's configuration will also include a Dialer interface
D.The configuration must also include a sub-interface with a VPI/VCI of 8/35


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1.单项选择题

Refer to the exhibit. Which statement is true regarding the topology?()

A.An IPSec tunnel cannot be established between Router A and Router B
B.The Linksys Firewall router does not support PPPoE
C.Destination addresses defined in RFC 1918 are not supported within an IPSec tunnel
D.The phone and PC behind Router A will not be able to connect to a host on 192.168.1.0/24

2.单项选择题

Refer to the exhibit. Easy VPN operates in two modes. The exhibit represents network extension mode. Choose the best reason for using this mode.()

A.Teleworker devices must be accessed from the central site (server, printers).
B.IP addressing is simplified. 
C.The Teleworker LAN is a transit networking for routing.
D.The Teleworker router is an MPLS PE node.

3.多项选择题What are disadvantages of Network Address Translation Transparency?()

A.There is no disadvantage.
B.It will add 16 bytes per packet of overhead(8 bytes UDP header, and 8 bytes of NON-IKE Marker).
C.It will add 36 bytes per packet of overhead (20 bytes of IP header, 8 bytes of UDP header, 8 bytes of NON-IKE Marker).
D.It will require that both crypto peers support this feature in the IOS version. Both crypto peers must also have this feature enabled.

4.单项选择题Which is not a reason that Internet Service Providers prefer to use PPP over Ethernet (PPoE)?()

A.access control and billing can be done on a per-user, rather than a per-site basis
B.supports Link Fragmentation and Interleaving 
C.provides the ability to connect a network of hosts over a simple bridging access device
D.provides a consistent means of authenticating users (RADIUS for example)

5.多项选择题When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?()

A.uplink speed less than 768kbps
B.supporting Voice-over-IP
C.using PPPoE encapsulation
D.using PPPoA encapsulation
E.uplink speed greater than 768kbps

6.单项选择题A customer indicates they run a mission-critical application which marks its packets best-effort (DSCP=0). How can you guarantee delivery of this traffic?()

A.Remark the traffic on ingress and prioritize on egress.
B.Enable CEF and Netflow. 
C.Configure the MS-Windows QoS Scheduler to prioritize this traffic.
D.Enable WRED.

7.单项选择题

Refer to the exhibit. With an IPSec tunnel established between remote Router A and head-end router B, with Compressed Real-Time Protocol (cRTP) configured on the serial interface of Router A, what impact will the cRTP configuration have on the Voice over IP packets flowing through the IPSec tunnel from a Cisco 7960 IP phone?()

A.Twenty bytes of header will be replaced with five bytes. 
B.If the IPSec transform set includes Authentication Header, the receiving IPSec peer will discard the packets. 
C.The IPSec packets will be dropped by Router A's compression logic.
D.The voice packets will not be compressed.

8.多项选择题What are the DSL-specific factors that require additional bandwidth when supporting Voice-over-IP over an IPSec VPN?()

A.A voice packet is sent via multiple fixed-length cells; a portion of the last cell is padding, requiring more bandwidth.
B.ADSL typically uses PPPoE encapsulation, which adds additional overhead to each voice packet.
C.A voice packet is sent via multiple fixed-length cells; each cell has about 10% Layer-2 header overhead. 
D.IPSec requires additional overhead for the header and hash. 
E.ADSL carrier band requires additional bits to be carried over the wire to the DSL Access Concentrator.

最新试题

Refer to the exhibit. Easy VPN operates in two modes. The exhibit represents network extension mode. Choose the best reason for using this mode.()

题型:单项选择题

A customer wants to deploy the Cisco Business Ready Teleworker solution, but is currently using a traditional (non-IP) PBX for voice services. What would you recommend to this customer?()

题型:单项选择题

When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?()

题型:多项选择题

Context-Based Access Control (CBAC) is the algorithm of the Cisco IOS firewall feature. How does CBAC improve Teleworker security?()

题型:单项选择题

A customer wants to TFTP a new image from the corporate network to Flash on the Teleworker router through the IPSec tunnel. How should you configure the Teleworker router?()

题型:单项选择题

Refer to the exhibit. With an IPSec tunnel established between remote Router A and head-end router B, with Compressed Real-Time Protocol (cRTP) configured on the serial interface of Router A, what impact will the cRTP configuration have on the Voice over IP packets flowing through the IPSec tunnel from a Cisco 7960 IP phone?()

题型:单项选择题

It is considered a best practice to use the Dead Peer Detection (DPD) feature with which VPN topologies?()

题型:单项选择题

Refer to the exhibit. Select the true statement.()

题型:单项选择题

Refer to the exhibit. Given the topology shown, what are two ways to allow the VPN to operate?()

题型:多项选择题

Refer to the exhibit. An enterprise's security policy disallows the use of wireless on a Teleworker PC. Choose the most appropriate 830 security feature to use to enforce the security policy.()

题型:单项选择题