Which two elements comprise the backbone area while designing a new network utilizing IS-IS as the interior gateway protocol (choose two)
A.
contiguous chain of Level 2 capable routers
B.
contiguous chain of Level1/Level 2 capable routers
C.
set of Level 2 configured interfaces
D.
contiguous Level 1 capable routers
E.
set of Level 1 configured interfaces
Explanation:
https://www.cisco.com/en/US/products/ps6599/products_white_paper09186a00800a3e6f.shtml
“Backbone IS-IS does not have a backbone area like the OSPF area 0. The IS-IS backbone is a contiguous collection of Level 2-capable routers, each of which can
be in a different area”
http://www.ciscopress.com/articles/article.asp?p=26850&seqNum=3
“In most designs with routing hierarchy, the Level 2 routers are also Level 1 routers by virtue of their identification with a certain area. Therefore, in IS-IS, a router
can function as Level 1-only or Level 2-only and possibly as both Level 1 and Level 2 (Level 1-2). Level 1-2 routers act as border routers to their respective areas,
providing connectivity to other areas. The Level 2 backbone is essentially a virtual IS-IS area consisting of routers engaged in Level 2 routing”
More new 300-320 added questions:
QUESTION
Which three options are basic design principles of the Cisco Nexus 7000 Series for data center virtualization? (Choose three.)
A. easy management
B. infrastructure scalability
C. cost minimization
D. upgrade of technology
E. transport flexibility
F. operational continuity
Answer: BEF
QUESTION
Which two options are advantages of having a modular design instead of an EOR design in a data center? (Choose two.)
A. cooling constraints
B. cable bulk
C. decreased STP processing
D. redundancy options
E. cost minimization
F. low-skilled manager
Answer: CD
QUESTION
Which statement about NIC teaming configurations is true?
A. With ALB, all ports use one IP address and multiple MAC addresses.
B. With AFT, two NICs connect to the different switches.
C. With SFT, all ports are active.
D. With AFT, all ports use one IP address and multiple MAC addresses.
Answer: A
QUESTION
Which two services are provided at the aggregation layer in a data center design? (Choose two.)
A. service module integration
B. default gateway redundancy
C. high-speed packet switching backplane
D. network interface card teaming
E. Layer 3 domain definitions
Answer: AB
QUESTION
Which two options are two benefits of a Layer 2 looped model? (Choose two.)
A. extends VLANs between switches that are connected to a common aggregation module
B. prevents uplink ports from entering the spanning-tree blocking state
C. provides quick convergence with Rapid Spanning Tree Protocol
D. increases performance to end hosts using directly connected, bonded Layer 2 links
Answer: AC
QUESTION
ACME corporation owns a single MDS.
Which two SAN tools can be used to optimize the use and cost of the switching hardware? (Choose two.)
A. zoning
B. IVR
C. VSAN
D. iSCSI
Answer: AC
QUESTION
Source traffic is sent to a VIP on an SLB device, which in turn is routed to the destination server. Return traffic is policy-based routed back to the SLB.
Which SLB design has been implemented?
A. router mode
B. inline bridge mode
C. one-armed mode
D. two-armed mode
Answer: D
QUESTION
Which four options are network virtualization technologies that are employed in the data center?
(Choose four.)
A. VLAN
B. VSAN
C. VRF
D. VRP
E. VLC
F. VPC
Answer: ABCF
QUESTION
Which three options are the three layers of the Cisco design in the data center architecture? (Choose three.)
A. core layer
B. distribution layer
C. service layer
D. aggregation layer
E. Layer 2 domain sizing
F. access layer
Answer: ADF
QUESTION
Which three virtualization categories are in campus networks? (Choose three.)
A. Layer 2 virtualization
B. Layer 3 clustering
C. network virtualization
D. device virtualization
E. network clustering
F. device clustering
Answer: CDF
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