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6.
Select the type of network communication flow that is best described as “one-tonearest.”
- A.Unicast
- B.Multicast
- C.Broadcast
- D.Anycast
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
|
A unicast network communication flow is considered a “one-to-one” flow,
because there is one source and one destination. A multicast network communication flow is considered a “one-to-many” flow, because there is one source and potentially many destinations (specifically, destinations that have joined a multicast group). A broadcast network communication flow is considered a “one-to-all” flow, because there is one source, and the destinations include all devices in a subnet. An anycast network communication flow is considered as “one-to-nearest” flow, because there are multiple devices assigned the same IPv6 address, and traffic is routed from one source to the nearest device assigned the destination IPv6 address. |
7.
Identify the distance-vector routing protocols from the following. (Choose the two
best answers.)
- A.IS-IS
- B.EIGRP
- C.RIP
- D.OSPF
- E.BGP
- Answer & Explanation
- Report
Answer : [B][C]
Explanation :
Explanation :
|
Both RIP and EIGRP are distance-vector routing protocols, although EIGRP
is considered an advanced distance-vector routing protocol. Both OSPF and IS-IS are link-state routing protocols, and BGP is a path-vector routing protocol. |
8.
Which of the following features prevents a route learned on one interface from being
advertised back out of that interface?
- A.Poison Reverse
- B.Summarization
- C.Split Horizon
- D.Convergence
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
|
The Split Horizon feature prevents a route learned on one interface from being
advertised back out of that same interface. The Summarization feature allows multiple contiguous networks to be represented with a single route advertisement. The Poison Reverse feature causes a route received on one interface to be advertised back out of that same interface with a metric considered to be infinite. Convergence is the speed at which a backup route takes over for a failed preferred route. |
9.
Which of the following is a benefit of Cisco EVN as compared to VRF-Lite?
- A.Cisco EVN allows a single physical router to run multiple virtual router
- B.Cisco EVN allows two routers to be interconnected through an 802.1Q trunk, and traffic for different VRFs is sent over the trunk, using router subinterfaces.
- C.Cisco EVN allows routes from one VRF to be selectively leaked to other VRFs.
- D.Cisco EVN allows two routers to be interconnected through a VNET trunk, and traffic for different VRFs is sent over the trunk, without the need to configure router subinterfaces.
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| Both Cisco EVN and VRF-Lite allow a single physical router to run multiple virtual router instances, and both technologies allow routes from one VRF to be selectively leaked to other VRFs. However, a major difference is the way that two physical routers interconnect. With VRF-Lite, a router is configured with multiple subinterfaces, one for each VRF. However, with Cisco EVN, routers interconnect using a VNET trunk, which simplifies configuration. |
10.
Which of the following are examples of traffic that can be created as part of an IP
Service-Level Agreement operation? (Choose two.)
- A.ICMP Echo
- B.VoIP (RTP)
- C.IPX
- D.SNMP
- Answer & Explanation
- Report
Answer : [A, B]
Explanation :
Explanation :
| The IP SLA feature focuses on IP traffic. Therefore, Cisco IOS does not include Novell’s older IPX protocol as part of IP SLA. IP SLA uses SNMP MIBs to store statistics, but it does not use SNMP as an operation. |
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