CCIE Written: Metro Ethernet : 350-027 Exam

Exam Number/Code: 350-027
Exam Name:CCIE Written: Metro Ethernet

“CCIE Written: Metro Ethernet”, also known as 350-027 exam, is a Cisco certification. With the complete collection of questions and answers, Actualtests has assembled to take you through 400 Q&As to your 350-027 Exam preparation. In the 350-027 exam resources, you will cover every field and category in CCIE helping to ready you for your successful Cisco Certification.
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QUESTION 11:
A service provider plans to offer Virtual Private LAN Service to a customer who has 10 sites, and the
customer edge switches are attached to 8 provider edge switches. What is the maximum number of
pseudowires that needs to be provisioned throughout the service provider network in order to have full
Layer-2 connectivity among all sites?
A. 10
B. 8
C. 28
D. 45
Answer: C
n(n-1)/2 = 8*7/2=28
QUESTION 12:
Which statements are true regarding the ‘preferred-path’ pseudowire command? Select two
A. It can be used with an interface, an IP address or an access-list.
B. When used with an IP address, the peer is a remote PE loopback.
C. When used with an IP address, the peer is the IGP next hop.
D. There must be an LSP destined to the IP address used.
E. There must be a TE-Tunnel LSP destined to the IP address used.
Answer: B, D
Explanation:
Preferred path
Path that was assigned to the VC and the status of that path. The path can be an MPLS
traffic engineering tunnel or an IP address or host name of a peer PE router
QUESTION 13:
The TCP PUSH flag indicates:
A. The data in the TCP receive buffer should be sent to the application listening to this TCP connection without
waiting for further data.
B. Any data being buffered by routers between the source and destination for this connection should be sent
immediately.
C. The sender should make certain its send buffer is pushed into the wire.
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D. This session is about to end.
Answer: A
QUESTION 14:
CIDR is primarily used:
A. In BGP only.
B. For classless routing.
C. In OSPF only.
D. In EIGRP only.
Answer: A
Classless Interdomain Routing (CIDR)
Classless interdomain routing. IP addressing technique supported by BGP4 and based on
route aggregation. CIDR allows routers to group routes together to minimize the quantity
of routing information carried by the core routers
QUESTION 15:
A service provider offers Virtual Private LAN Service over its MPLS-enabled network. Currently 6
provider edge switches total are in service. There are 5 customers who subscribed for the service, and
every customer has 2 sites attached for every provider edge switch. What is the maximum number of
LDP sessions created for pseudowire signaling throughout the service provider network to have full
Layer-2 connectivity among all sites of each customer?
A. 15
B. 30
C. 36
D. 45
Answer: A
n(n-1)/2=6*5/2=15 since LDP is bidirectional
QUESTION 16:
Estimating the MTU for EoMPLS Packets Edge MTU of 1500, Transport header, AToM header present,
MPLS label, and stack MPLS label, calculate the core MTU requirements to handle EoMPLS port mode
packets.
A. 1518
B. 1520
C. 1524
D. 1526
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Answer: D
See Table 7-3@ L2 VPN architectures.
QUESTION 17:
The ATM reference model is composed of which ATM layers? (Multiple answer) Select three.
A. ATM layer
B. Physical layer
C. Modular layer
D. ATM adaptation layer
Answer: A, B, D
QUESTION 18:
In MPLS what is an LSP?
A. Label Selection Pair
B. Label Switched Path
C. Lightweight Signaling Protocol
D. Large Sampling Path
Answer: B
QUESTION 19:
Which statements are true regarding default MTU? Select two.
A. Ethernet and POS are 1500 bytes.
B. Ethernet, Serial and HSSI are 1500 bytes.
C. HSSI, ATM and POS are 9100 bytes.
D. HSSI, ATM and POS are 4470 bytes.
E. Ethernet and Serial are 1500 bytes
Answer: D, E
Explanation:
http://www.cisco.com/en/US/partner/tech/ CK3 9/ CK3
71/technologies_tech_note09186a00800c8279.shtml#mtu_4470_bytes
FDDI, HSSI, ATM, POS – 4470
QUESTION 20:
In VPLS, the MAC address withdrawal is accomplished by means of what protocol?
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A. UDP
B. STP
C. BGP
D. PWE3
E. LDP
Answer: E

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