As an experienced network administrator, you are asked to troubleshoot a QoS problem. In which way might the Cisco NetFlow be helpful during the troubleshooting process?（）
A . NetFlow can discover the protocols in use and automatically adjust QoS traffic classes to meet policy-map requirements.
B . NetFlow records can be used to understand traffic profiles per class of service for data, voice, and video traffic.
C . NetFlow can be configured to identify voice and video traffic flows and place them into a low-latency queue for expedited processing.
D . NetFlow can report on the number of traffic matches for each class map in a configured QoS policy configuration.
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As a network engineer， study the exhibit carefully. Router Net is unable to establish an ADSLconnection with its provider. Which action would correct this problem？（）https://assets.asklib.com/images/image2/2018072709173169055.jpg
A . On the Dialer0 interface， add the pppoe enable command
B . On the Dialer0 Interface， add the ip mtu 1496 command
C . On the ATM0/0 interface， add the dialer pool-member 1 command
D . On the ATM0/0 interface， add the dialer pool-member 0 command
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As an experienced technician, you are responsible for Technical Support. A customer calls to ask the best signal level and noise level for cell phone. How to respond?（）
A . -40dBm signal and -90dBm noise
B . -50dBm signal and -90dBm noise
C . -30dBm signal and -90dBm noise
D . -20dBm signal and -90dBm noise
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As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:（）
A . using DHCP snooping
B . snooping the incoming 802.1Q VLAN tag
C . using CDP
D . snooping the CoS marking on the incoming frame
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As an experienced technician, you are responsible for Technical Support in your company. One of the trainees is asking you in what might happen if he issues the logging trap information command. Which of the following statement will answer his queston?（）
A . Informational and debug messages are logged to the syslog server.
B . All messages are sent to the logging host, where selections are made.
C . An information trap is sent to the SNMP server.
D . All messages from emergencies to informational are sent to the logging host.
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You work as a network technician at Certkiller .com. Please study the exhibit carefully. The exhibit is an example of which technology being implemented？（）https://assets.asklib.com/images/image2/2018073114112240664.jpg
A . Spanning-tree
B . 802.1Q
C . VLANs
D . PAT
E . QoS
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A client is experiencing issues after cloning an LPAR using alt_disk_install. DLPAR functions are not available for the new LPAR. Also, there is a lot of network traffic to the HMC. What is the most probable cause of this problem?（）
A . DLPAR functions are not available for cloned partitions
B . The new partition has the same node number as the original LPAR
C . Additional filesets need to be reinstalled after the alt_disk_install cloning
D . The speed and duplex settings on the Ethernet adapter on the new LPAR is misconfigured
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As an experienced technician， you are responsible for Technical Support. One of the trainees isasking your advice on VPN Termination Device and Firewall Placement. Which of the following approaches will you recommend？（）
A . inline with a firewall
B . in a DMZ outside the firewall
C . parallel with a firewall
D . in a DMZ behind the firewall
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As an experienced technician, you are responsible for infrastructure design and global configuration changes. You are asked to deploy a Voice over Wireless LAN for your company. If the cells have the same channel, the separation between them should be:（）
A . 19dbm
B . 10dbm
C . 67dbm
D . 86dbm
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As an experienced technician， you are responsible for Technical Support. Which of the followingdescriptions is correct about the characteristic of SLB one arm mode？（）
A . This out-of-band approach supports scaling
B . SLB· is not inline.
C . Mode is not as common as bridge or routed mode.
D . Return traffic requires PB·R， server default gateway pointing to SLB·， or client source NAT·
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You are experiencing intermittent issues relating to congestion with your network.What are the possible causes of congestion on a LAN?（）
A . A broadcast domain with too many hosts.
B . Full duplex operation.
C . Broadcast storms.
D . Multicasting.
E . Network Segmentation.
F . Low bandwidth.
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As an experienced Network Engineer, you are required to implement the security architecture assessment. Which of the following statement describes the most important reason for that?（）
A . Create a design specification document.
B . Integrate routing and switching components.
C . Document power and UPS availability
D . Document the customer's current and future technology projects.
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The connection between two networks from an intemet is handled by a machine known as a（）
A . bridge
B . server
C . router
D . switch
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A customer wants to deploy a single-band access point for an 802.11 b/g solution now. with theoption to upgrade to 802.11 a/b/g as network requirements change. Which Cisco access point series is best suited for this requirement？（）
A . CiscoAironet 1000 Series products
B . CiscoAironet 1100 Series products
C . CiscoAironet 1130AG Series products
D . CiscoAironet 1200 Series product
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A Cisco Catalyst switch is part of the CIS network. As an experienced network administrator, you are thinking of filtering the traffic within VLANI00 with the use of a VACL named "test" on that switch. Which of the following command will enable that?（）
A . interface vlan 100 ip access-group test in
B . interface vlan 100 ip access-group test
C . vlan access-map test 100
D . vlan filter test vlan-list 100
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As an experienced Network Engineer, you are responsible for network connectivity and system configuration. Which of the following protocols will be supported by Cisco Nonstop Forwarding (NSF)?（）
A . ISSU，OSPF，IS-IS
B . IETF，OSPF，ISSU
C . IS-IS，EIGRP，SSO，BGP
D . EIGRP，BGP，OSPF，IS-IS
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As an experienced technician, you are responsible for Technical Support in your company. You ask one of the trainees to document the layers of an existing CIS network. Which three statements best characterize this process? （）(Choose three.)
A . It provides reliable input for verifying network consistency.
B . It requires a network audit to support some upgrade decisions.
C . It requires a network audit to support any network restructuring.
D . It begins with gathering organizational input that may be inaccurate.
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As an experienced Network Engineer, you are required to characterize an existing CIS network. In such a situation, what is the last step to take?（）
A . Perform a network audit.
B . Form an impression about the network.
C . Use traffic analysis to augment organizational input.
D . Prepare and add to the network description.
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The system administrator notices that IP packets are not getting forwarded. The system administrator wants to use an AIX machine as an internetwork router over TCP/IP networks. Which of the following commands will allow this change on the fly？（）
A . Some network attributes are runtime attributes that can be changed at any time. Others are loadtime attributes that must be set before the netinet kernel extension is loaded and be placed in the /etc/rc.net or /etc/rc.bsdnet file. This parameter cannot be done on the fly， since a reboot is required.
B . Add to the /etc/rc.net file or if a Berkelye-style network configuration， /etc/rc.bsdnet， and issue the command： no -a ipforwarding=1 to start ipforwarding immediately.
C . Add to the /etc/rc.net file or if a Berkeley-style network configuration， /etc/rc.bsdnet， and issue the command： no -o ipforwarding=0 to start ipforwarding immediately.
D . Add to the /etc/rc.net file or if a Berkeley-style network configuration， /etc/rc.bsdnet， and issue the command： no -o ipforwarding=1 to start ipforwarding immediately.
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As an experienced technician, you are responsible for Technical Support. Which of the following descriptions is correct about the characteristic of SLB one arm mode?（）
A . This out-of-band approach supports scaling
B . SLB is not inline.
C . Mode is not as common as bridge or routed mode.
D . Return traffic requires PBR, server default gateway pointing to SLB, or client source NAT.
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You work as a network engineer， do you know an IPsec tunnel is negotiated within the protection of whichtype of tunnel？（）
A . L2F tunnel
B . L2TP tunnel
C . GRE tunnel
D . ISAKMP tunnel
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You are an administrator of a network that uses PPP for CHAP authentication over ever WAN link. What command would you enter to display the CHAP authentication as it occurs in real time?（）
A . show ppp authentication
B . debug PAP authentication
C . debug PPP authentication
D . show interface serial0
E . show CHAP authenticatio
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As an experienced technician, you are responsible forT echnical Support in your company. One of the trainee implement RIP routing contests in MPLS VPN. How to respond?（）
A . Routing contexts are implemented in a single routing process.
B . Routing contexts are implemented using multiple roubng processes.
C . Routing contexts are implemented as a single instance of several routing processes.
D . Routing contexts are implemented as several instances of a single routing process.
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You work as a network technician at Company. Your boss, Mrs. , is interested in switch spoofing. She asks you how an attacker would collect information with VLAN hoping through switch spoofing. You should tell her that the attacking station... （）
A . ...uses VTP to collect VLAN information that is sent out and then tags itself with the domain information in order to capture the data.
B . ...will generate frames with two 802.1Q headers to cause the switch to forward the frames to a VLAN that would be inaccessible to the attacker through legitimate means.
C . ...uses DTP to negotiate trunking with a switch port and captures all traffic that is allowed on the trunk.
D . ...tags itself with all usable VLANs to capture data that is passed through the switch， regardless of the VLAN to which the data belongs.
E . None of the other alternatives apply
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As an experienced technician, you are responsible for Technical Support in your company. One of the trainees is asking you some quest|ons on the basis of the following output information. He is wondering, as to interface Fa0/0, assuming that the queue depth value for class "newclass" reaches 32, how many packets will be dropped concerning dscp afll traffic？（）
<img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/8c4e1542d98c7c3a93a8829182d77b66.jpg' />
A. All Packets will be dropped
B. One out of Ten packets will be dropped
C. No Packets will be dropped until queue depth reached 256
D. Packets will be dropped according to the exponential weight setting
