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Question No: 13
What is the benefit of point-to-point leased line ?
A. Low cost
B. Full-mesh capability
C. Flexibillity of design
D. Simply configuration
Answer: D
Question No: 14
Under which two circumstances is network traffic most likely to use an Exterior Gateway Routing Protocol? (Choose two)
A. When an employee connects to an employer branch office in a different city.
B. When network traffic is routing to a different building on a corporate campus.
C. When an employee is browsing the public internet.
D. When an employee checks email while working onsite at the data center.
E. When a user browsing the web site of a business partner.
Answer: A,D
Question No: 15
If you configure syslog messages without specifying the logging trap level, which log messages will the router send?
A. error conditions only
B. warning and error conditions only
C. normal but significant conditions only
D. all levels except debugging
E. informational messages only
Answer: E
Question No: 16
refer to the exhibit , on R1, which routing protocol is in use on the route to 192.168.10.1?
A. EIGRP
B. OSPF
C. RIP
D. BGP
Answer: A
Question No: 17
Which three statements about DWDM are true? (Choose three)
A. It allows a single strand of fiber to support bidirectional communications
B. It is used for long-distance and submarine cable systems
C. It can multiplex up to 256 channels on a single fiber
D. It supports both the SDH and SONET standards
E. Each channel can carry up to a 1-Gbps signal
F. It supports simplex communications over multiple strands of fiber
Answer: C,D,E
Explanation: ref:https://www.cisco.com/en/US/products/hw/optical/ps2011/products_data_sheet09186a0 08012a900.html
Question No: 18
How to trouble DNS issue ( choose two) ?
A. Ping a public website IP address.
B. Ping the DNS Server.
C. Determine whether a DHCP address has been assigned.
D. Determine whether the hardware address is correct.
E. Determine whether the name servers have been configured.
Answer: B,E
Explanation: Reference: https://l.facebook.com/l.php?u=http%3A%2F%2Fwww.cisco.com%2Fen%2FUS%2Fdocs%2Finternetworking%2Ftroubleshooting%2Fguide%2Ftr1907.html%23wp1021264&h=ATMT6hWMWKar6G3cbMd8vYoG64obKG4CIuxXlmCWtCLencP9vUG0hrC3C0azv18aRsmIsdrKko8ew_O6UkUwYCVqgYvxTz3TFquXNKyrnrAa1arE1V4HBFjg4_E2gJSawoz2_g Ping the destination by name perform a DNS lookup on the destination
Question No: 19
which value indicate the distance from the ntp authoritative time source?
A. Priority
B. Location
C. layer
D. Stratum
Answer: D
Question No: 20
How does a Layer 2 switch differ from a hub?
A. A switch tracks MAC addresses of directly-connected devices.
B. A switch always induces latency into the frame transfer time.
C. A switch operates at a lower, more efficient layer of the OSI model.
D. A switchdecreases the number of collision domains.
Answer: A
Question No: 21
Refer to the exhibit.
After you apply the given configuration to arouter, the DHCP clients behind the device connot communicate with hosts outside of their subnet. Which action is most likely to correct the problem?
A. Configure the dns server on the same subnet as the clients
B. Activate the dhcp pool
C. Correct the subnet mask
D. configure the default gateway
Answer: D
Question No: 22
Which major component of the network virtualization architecture isolates users according to policy?
A. network services virtualization
B. access control.
C. path isolation
D. policy enforcement
Answer: A