Cisco 642-873 Online Practice Questions and Exam Preparation

Cisco 642-873 Online Questions & Answers

• Question 1:

  When an enterprise network is designed, which protocol provides redundancy for edge devices in the event of a first-hop failure?

  A. ICMP
  B. HSRP
  C. STP
  D. HTTP
  B. HSRP

• Question 2:

  Which three Layer 2 access designs have all of their uplinks in an active state? (Choose three.)

  A. Flex Links
  B. loop-free U
  C. looped square
  D. looped triangle
  E. loop-free inverted U
  B. loop-free U
  C. looped square
  E. loop-free inverted U

• Question 3:

  To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus?

  A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link
  B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link
  C. to two core switches from redundant distribution switches connected with a Layer 2 link
  D. to two core switches from redundant distribution switches connected with a Layer 3 link
  E. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
  D. to two core switches from redundant distribution switches connected with a Layer 3 link

• Question 4:

  DRAG DROP

  Select and Place:

  

  

• Question 5:

  Refer to the exhibit.

  

  Which statement about the ASA is true?

  A. The management interface is reachable only from VLAN 30.
  B. The management interface is reachable only from VLAN 40.
  C. It is running in transparent mode.
  D. It is running in routed mode.
  C. It is running in transparent mode.

• Question 6:

  To which network layer should Cisco Express Forwarding be tuned to support load balancing and to make more informed forwarding decisions?

  A. Layer 1
  B. Layer 2
  C. Layer 3
  D. Layer 4
  E. Layer 5
  F. Layer 6
  G. Layer 7
  D. Layer 4

• Question 7:

  Which architecture provides a way to deliver end-to-end QoS as required by real-time voice and video business applications?

  A. IntServ
  B. DiffServ
  C. LLQ
  D. ToS
  E. DSCP
  A. IntServ

• Question 8:

  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
  A. core layer
  D. aggregation layer
  F. access layer

• Question 9:

  From a design perspective which two of the following OSPF statements are most relevant? (Choose two)

  A. OSPF stub areas can be thought of as a simple form of summarization
  B. OSPF cannot filter intra-area routes
  C. An ABR can only exist in two areas - the backbone and one adjacent area
  D. Performance issues in the Backbone area can be offset by allowing some traffic to transit a non-backbone area
  E. The size of an area (the LSDB) will be constrained by the size of the IP MTU
  A. OSPF stub areas can be thought of as a simple form of summarization
  B. OSPF cannot filter intra-area routes

• Question 10:

  A company uses BGP to connect with the ISP on the enterprise network and wants to improve performance due to the increasing number of iBGP peers. Which two design solutions address the iBGP full mesh requirement? (Choose two.)

  A. route reflectors
  B. confederations
  C. AS path prepending
  D. communities
  E. conditional advertising
  A. route reflectors
  B. confederations