[2016 September-New]Cisco 400-201 VCE & PDF 414Q&As [NQ1-NQ10] Download

2016.08.30 New 400-201: Cisco CCIE Service Provider Written Exam v4.1 Exam Questions Updated Today!

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NEW QUESTION 1 – NEW QUESTION 10

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QUESTION 1
When will the primary processor core dump run in case of a switchover?

A.    never takes place
B.    periodically
C.    during switchover
D.    after switchover
E.    before switchover

Answer: D
Explanation:
In networking devices with redundant processors, the Post-Switchover Core Dump feature uses better software communication techniques between redundant processors to allow the switchover to occur before dumping core information. Not having to wait for dump operations effectively decreases the switchover time between processors.
The newly active primary processor runs the core dump operation after switchover
http://www.cisco.com/en/US/docs/ios/12_0st/12_0st18/feature/guide/coredump.html

QUESTION 2
A company plans to secure its connectivity over its provider. Which method can reduce overhead and provide encryption for Layer 2 over the provider cloud?

A.    MACsec
B.    IPsec
C.    L2VPN with 802.1X extensions
D.    L2TPv3

Answer: A

QUESTION 3
What statement about Transit AS is true?

A.    Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Source AS.
B.    None of the above.
C.    Traffic and prefixes originating from Source AS are carried across a Transit AS to reach their destination AS.
D.    Traffic and prefixes originating from Transit AS are carried across a Stub AS to their destination AS.

Answer: C

QUESTION 4
Due to recent acquisitions, a company’s MPLS infrastructure is growing very quickly. Concerns arise about labeling each and every IP address on the P router. Which command would significantly reduce the label allocations without compromising LDP functionalities?

A.    ip prefix-list List1 deny prefix/prefix_length
!
mpls ldp label
allocate global prefix-list List1
B.    mpls ldp label
allocate global host-routes
C.    access-list 1 permit subnet wildcard
mpls ldp neighbor neighbor_ip labels accept 3
D.    mpls ldp password required for 10
!
access-list 10 permit host_ip_1
access-list 10 permit host_ip_2
access-list 10 permit host_ip_n

Answer: A

QUESTION 5
Refer to the exhibit. When a traceroute is performed from a PC behind R2, the next hop on R1 for IPv4 is 10.0.1.2, and for IPv6 it is 2001:DB8:2:2. What is causing thus behavior?
 

A.    GigabitEthernet2/1 has a Level 1-only adjacency.
This causes it to be the preferred path for the IPv6 packets.
B.    When SPF ran on R2, it calculated two equal paths to R1.
It was a coincidence that than the packets choose different paths.
C.    Multitopology is enabled on R2, which causes the IPv6 packets to use a different path than the IPv4 packets.
D.    2001:DB8:2::2 is on a Gigabit Ethernet interface.
Because its speed is higher than Fast Ethernet, the IS-IS metric is preferred.

Answer: C

QUESTION 6
What are two advantages of Cisco IOS XR Software over Cisco IOS Software? (Choose two.)

A.    a configuration that is grouped by interface
B.    a configuration that is grouped by process
C.    one-stage configuration
D.    a monolithic OS
E.    a two-stage configuration

Answer: BE

QUESTION 7
An IS-IS enabled router with multiple IS-IS neighbors is required to have BFD sessions with all neighbors. Which BDF mode should you use when you want to save the overhead of periodic protocol control packets?

A.    echo
B.    asynchronous
C.    demand
D.    active

Answer: C
Explanation:
https://tools.ietf.org/html/rfc5880#section-3.1

QUESTION 8
Drag and Drop Questions
Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right.
 
Answer:
 
QUESTION 9
A network engineer wants to decrease the convergence time of a network that is running integrated IS-IS as an IGP, at the expense of bandwidth and CPU usage.
Which two configuration tasks achieve this goal? (Choose two.)

A.    Configure the hold time to be 1 second.
B.    Configure the hello interval to be minimal.
C.    Ensure that hello-padding is disabled.
D.    Ensure that the hello multiplier is set to 3.
E.    Configure the hello multiplier to be 3.

Answer: BE

QUESTION 10
Which are two major changes SyncE offers over traditional Ethernet to make it suitable for clock distribution? (Choose two.)

A.    SyncE introduces the concept of “Boundary Clocks” and “Transparent Clocks” improving network scalability and accuracy of clock synchronization.
B.    Industry standard that guarantee interoperability, since granular details, such as specific field values are specified.
C.    A mandated clock accuracy of 4.6ppm.
D.    The ESMC protocol for clock selection, distribution, management, traceability, and failover.
E.    High-priority synchronization packets so it can continually adjust its own oscillator.

Answer: CD
Explanation:
http://www.cisco.com/c/en/us/support/docs/optical/synchronous-optical-network-sonet/23718-timefaq-23718.html
http://cp.literature.agilent.com/litweb/pdf/5990-4386EN.pdf


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