READ Free Dumps For CISCO- 100-105
| Question ID 14528 | What command sequence will configure a router to run OSPF and add network 10.1.1.0
/24 to area 0?
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| Option A | router ospf area 0 network 10.1.1.0 255.255.255.0 area 0
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| Option B | router ospf network 10.1.1.0 0.0.0.255
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| Option C | router ospf 1 network 10.1.1.0 0.0.0.255 area 0
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| Option D | router ospf area 0 network 10.1.1.0 0.0.0.255 area 0
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| Option E | router ospf network 10.1.1.0 255.255.255.0 area 0
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| Option F | router ospf 1 network 10.1.1.0 0.0.0.255
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| Correct Answer | C |
Explanation Explanation: Enabling OSPFSUMMARY STEPS 1. enable 2. configure terminal 5. end DETAILED STEPS Command or Action Purpose Step 1 enable Example: Device> enable Enables privileged EXEC mode. ✑ Enter your password if prompted. Step 2 configure terminal Example: Device# configure terminal Enters global configuration mode. Step 3 Example: Device(config)# router ospf 109 Enables OSPF routing and enters router configuration mode. Step 4 Example: Device(config-router)# network 192.168.129.16 0.0.0.3 area 0 Defines an interface on which OSPF runs and defines the area ID for that interface. Step 5 end Example: Device(config-router)# end Exits router configuration mode and returns to privileged EXEC mode. Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/12- 4t/iro-12-4t-book/iro-cfg.html#GUID-588D1301-F63C-4DAC-BF1C-C3735EB13673
| Question ID 14529 | The internetwork infrastructure of company XYZ consists of a single OSPF area as shown
in the graphic. There is concern that a lack of router resources is impeding internetwork
performance. As part of examining the router resources, the OSPF DRs need to be known.
All the router OSPF priorities are at the default and the router IDs are shown with each
router.
Which routers are likely to have been elected as DR? (Choose two.)
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| Option A | Corp-1
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| Option B | Corp-2
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| Option C | Corp-3
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| Option D | Corp-4
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| Option E | Branch-1
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| Option F | Branch-2
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| Correct Answer | D,F |
Explanation Explanation: There are 2 segments on the topology above which are separated by Corp-3 router. Each segment will have a DR so we have 2 DRs. To select which router will become DR they will compare their router-IDs. The router with highest (best) router-ID will become DR. The router-ID is chosen in the order below: + The highest IP address assigned to a loopback (logical) interface. + If a loopback interface is not defined, the highest IP address of all active routers physical interfaces will be chosen. In this question, the IP addresses of loopback interfaces are not mentioned so we will consider IP addresses of all active routers physical interfaces. Router Corp-4 (10.1.40.40) & Branch-2 (10.2.20.20) have highest active IP addresses so they will become DRs.