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A Network Engineer configured NAT for external access but one individual at a time can access the external network. What NAT feature will allow all internal devices to share the same NAT IP address?
A. Static mapping
B. Overload feature
C. NAT DHCP feature
D. Default route statement
Which command set is required to enable a remote SNMP query on an IOS-XR router?
A. control-planemanagement-planeinbandinterface allallow SNMPcommit
B. control-planemanagement-planeinbandinterface allallow SNMP
C. snmp server hostsnmp server contactsnmp-server community stringcommit
D. snmp server hostsnmp server contactsnmp-server community string
What is the minimum version of DOCSIS that will support IPv6?
A. Version 1
B. Version 2
C. Version 3
D. Version 3.1
Which multiplexing technology has minimal impact to production traffic when changes are implemented to a live circuit?
A. Dark fiber
A network administrator set-up AAA on a new router. While the TACACS server was down for maintenance, the administrator was still unable to login with the backup password.
Which keyword did the administrator leave off of the AAA configuration?
A. The keyword local is missing from the AAA authentication login statement.
B. The keyword local is missing from the AAA authentication exec statement.
C. The keyword default is missing from the login authentication.
D. The command line privilege level 0 is missing from the VTY configuration.
Which two statements about NetFlow support on Cisco IOS XR are true? (Choose two.)
A. Cisco IOS XR supports NetFlow version 9 export format only.
B. NetFlow version 9 is a flexible and extensible means to carry NetFlow records from a network node
to a collector.
C. IP flow is based on a set of four parameters only (source IP address, destination IP address, source
port, and destination port).
D. A NetFlow flow is the bidirectional sequence of packets on a single interface.
What are the four steps to enable SSH v1 and v2 server on Cisco IOS XR routers? (Choose four.)
A. Configure a host name.
B. Configure a domain name.
C. Generate a crypto key pair.
D. Import the router identity certificate and the CA root certificate to the router.
E. Configure an ISAKMP policy.
F. Bring up an SSH server using the ssh server command.
Generally, which way is the fastest to open S3 and S4 service requests to the Cisco TAC?
A. Use the Smart Call Home feature.
B. Use the online TAC Service Request Tool.
C. Call Cisco TAC on the phone.
D. Email Cisco TAC with a high-priority email.
E. Export the related Syslog/NetFlow information to TAC directly.
Given the IP address 172.16.170.15 255.255.224.0, which three options are the subnet that this IP address belongs to, the host IP address range on this subnet, and the subnet broadcast IP address? (Choose three.)
A. subnet = 172.16.160.0/19
B. subnet = 172.16.170.0/19
C. subnet = 172.16.192.0/19
D. host IP address range = 172.16.160.1 to 172.16.191.254
E. host IP address range = 172.16.170.1 to 172.16.170.254
F. host IP address range = 172.16.160.1 to 172.16.223.254
G. subnet broadcast IP address = 172.16.170.255
H. subnet broadcast IP address = 172.16.191.255
I. subnet broadcast IP address = 172.16.223.255
Which three IP addresses are valid for hosts that belong to the 10.152.0.0/13 subnet? (Choose three.)
Which type of IPv6 address does the ff00::/8 prefix denote?
A. local loopback
B. global unicast
C. unique link local
D. link local unicast
With IPv6, for which purpose are router solicitation and router advertisement used?
A. routing protocol updates
B. routing protocol neighbor peerings
C. router and prefix discovery
D. Layer 3 to Layer 2 address resolution (similar to IPv4 ARP)
Which Cisco router feature allows multiple independent routing table instances to co-exist within the same router at the same time?
A. Virtual Contexts
B. Virtual Machines
You have a LAN that has three computers. The computers are connected by a switch.
The computers are in the 192.168.1.0/24 network.
Which network device enables you to connect the LAN to the Internet?
A. a switch
B. a hub
C. a router
D. a DSL modem in bridge mode
You plan to implement QoS on a network, using these four classes:
– A class for real-time applications
– A class for interactive applications
– A class for batch applications
– A scavenger class
Which two classes are interactive applications? (Choose two.)
C. database updates
D. IP telephony
E. file transfers
Which command assigns an IP address to the Loopback1 interface on a Cisco IOS Router?
A. ip address 192.168.41.111 255.255.255.240
B. set ip 127.0.0.1/32
C. ip address 127.0.0.1 255.255.255.0
D. ip address 169.254.47.81 255.255.0.0
You are configuring manual route summarization in EIGRP. Which two networks are summarized into 10.134.17.64/27? (Choose two.)
A. 10.134.17.64 255.255.255.240
C. 10.134.17.0 255.255.255.128
Which two IP addresses can be assigned to hosts? (Choose two.)
Which three statements about Ethernet frames are true? (Choose three.)
A. Every frame starts with a preamble.
B. FCS is used to recover single-bit errors.
C. The source address is positioned behind the destination address.
D. If the data field is too short, it must be padded.
E. The dot1q tag size is six bytes.
F. The source and destination IP addresses are in the header.
Refer to the exhibit. ServerA successfully connects to Router1, but it fails to ping SwitchX.
Which action enables ServerA to ping SwitchX?
A. Set the default gateway on ServerA to 10.10.1.1.
B. Enter the command no shutdown on the Vlan1 interface of SwitchX.
C. Change the subnet mask on the Vlan1 interface of SwitchX to 255.255.255.0.
D. Replace the cable in FastEthernet0/2.
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640-875 new questions on Google Drive: https://drive.google.com/open?id=0B3Syig5i8gpDckI1VHBCZmx4X2c
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