單項(xiàng)選擇題Cisco Express Forwarding (CEF) is mainly used to increase packet switching speed, reducing theoverhead and delays introduced by other routing techniques, increasing overall performance.Which of the following concerning CEF is recommended by Cisco?()

A. Use default Layer 4 hash in core.
B. Use default Layer 3 hash in distribution.
C. Use default Layer 4 hash in distribution.
D. Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.


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1.多項(xiàng)選擇題Which three statements about firewall modes are correct? ()

A. A firewall in routed mode has one IP address
B. A firewall in transparent mode has one IP address
C. In routed mode, the firewall is considered to be a Layer 2 dew
D. In routed mode, the firewall is considered to be a Layer 3 device
E. In transparent mode, the firewall is considered to be a Layer 2 device
F. In transparent mode, the firewall is considered to be a Layer 3 device

2.單項(xiàng)選擇題

Refer to the exhibit.

Which of the following is an advantage of device clustering utilizing Virtual Port Channels (vPC)?()

A. A logical star topology provides a loop free environment so that all links will be used forwardtraffic
B. Enhanced EtherChannel hashing load balancing using the vPC peer link internal to the VPC
C. The control plane functions of the Nexus switches are merged to hide the use of virtualization
D. Neighboring devices connect on a Layer 3 MEC for improved packet forwarding

3.單項(xiàng)選擇題Which of these statements about FSPF is true?()

A. It supports multipath routing
B. It can run any type of storage ports
C. When it is used, hop-by-hop routes are based only on the switch ID
D. When it is used, path status is based on the functionality of attached ports
E. It runs only on a switch fabric and cannot function in a VSAN

4.多項(xiàng)選擇題Which of the following two statements about Cisco NSF and SSO are the most relevant to thenetwork designer? ()

A. You can reduce outage 1 to 3 seconds by using SSO in Layer 2 environment or Cisco NSF with SSO in a Layer 3 environment.
B. SSO and NSF each require the device to either be graceful restart-capable or graceful-aware.
C. In a fully redundant topology adding redundant supervisor a with NSF and SSO may causelonger convergence times than single supervisors with turned IGP times
D. The primary deployment scenario for Cisco NSF with SSO is in the Distribution and Corelayers.
E. Cisco NSF-aware neighbor relationship are independent of any turned IGP times

5.單項(xiàng)選擇題What is the recommended practice regarding UDLD when implementing it in all fiber-optic LANports?()

A. Adjust the default hello timers to three seconds for aggressive mode
B. Enable it in global mode and on every interface you need to support
C. Enable it in global mode to support every individual fiber-optic interface
D. Enable it to create channels containing up to eight parallel links between switches

6.單項(xiàng)選擇題Wh.ch version of spanning tree is recommended for the enterprise campus?()

A. CST
B. MST
C. STP
D. PVST+
E. PVRST+

7.多項(xiàng)選擇題Which two statements correctly identify considerations to take into account when deciding onCampus QoS Design elements? ()

A. Voice needs to be assigned to the hardware priority queue
B. Voice needs to be assigned to the software priority queue
C. Call signaling must have guaranteed bandwidth service
D. Strict-priority queuing should be limited to 50 percent of the capacity of the link
E. At least 33 percent or the link bandwidth should be reserved tor default best effort class

8.單項(xiàng)選擇題Which of the following is true regarding the effect of EIGRP queries on the network design?()

A. EIGRP queries will be the most significant issue with respect to stability and convergence 
B. EIGRP queries are not a consideration as long as EIGRP has a feasible successor with a nexthop AD that is greater than the FD of the current successor route 
C. EIGRP queries will only increase the convergence time when there are no EIGRP stubsdesigned in the network

9.單項(xiàng)選擇題Which of the following is true when considering the Server load-balancing design within the E-Commerce Module of the Enterprise Campus network?()

A. Routed mode requires the ACE run OSPF or EIGRP
B. Bridged mode switches a packet between the public and the private subnets when it sees itsMAC address as the destination
C. Two-armed mode will place the SLB inline to the servers, with different client-side and a server-side VLANs
D. One-armed mode, which uses the same VLAN for the client, the ACE, and the servers, requiresa traffic-diversion mechanism to ensure the traffic return from the server passes though the ACE

10.單項(xiàng)選擇題Which factor is least likely to affect the scalability of a VPN design?()

A. number of branch offices
B. number of IGP routing peers
C. remote Office and home worker throughput bandwidth requirements
D. high availability requirements
E. Supported applications

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Which three of the following descriptions are true about the firewall modes? ()

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At a certain customer’s site, a NAS is both physically and logically in the traffic path. The NAS identifies clients solely based on their MAC addresses. In which access mode has this NAS been configured to operate?()

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In a VoWLAN deployment, what is the recommended separation between cells with the same channel?()

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One of your customers has deployed a Layer 3 gateway in the untrusted network. Which gateway mode is appropriate for this customer?()

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During consultation, you find that a customer has multiple asset closets and will be adding more inthe future. Which NAS physical deployment model would you suggest to this customer?()

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How many channels are defined in the IEEE 802.11b DSSS channel set?()

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Which statement about data center access layer design modes is correct?()

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In a collapsed core design, which two benefits are provided by a second-generation Cisco MDS director? ()

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Which two of these correctly describe asymmetric routing and firewalls? ()

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Refer to the exhibit. Which two of these are characteristics of a firewall running in transparent mode?() 

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