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Refer to the exhibit. What does router R1 use as its OSPF router-ID?
Answer: C
OSPF uses the following criteria to select the router ID: 1. Manual configuration of the router ID (via the ג€router-id x.x.x.xג€ command under OSPF router configuration mode). 2. Highest IP address on a loopback interface. 3. Highest IP address on a non-loopback and active (no shutdown) interface.
Source: Adapted from community discussion — [Removed]
Refer to the exhibit. The loopback1 interface of the Atlanta router must reach the loopback3 interface of the Washington router. Which two static host routes must be configured on the New York router? (Choose two.)
Answer: CE
To let the serial interfaces on the Atlanta and Washington routers reach other, you need to configure a static host route (on the New York router) which points to the destination IP (to the serial interface of the other router) and goes through the next-hop IP address. For the Washington Lo3, you have to specify a static route to 2000::3/128 (destination IP) through Se0/0/0 on the Washington router (the next-hop): ipv6 route 2000::3/128 2023::3 For the Atlanta Lo1, you have to specify a static route to 2000::1/128 (destination IP) through Se0/0/0 on the Atlanta router (the next-hop): ipv6 route 2000::1/128 2012::1 command on the Washington router A. ipv6 route 2000::3/128 s0/0/0 Wrong answer. B. ipv6 route 2000::1/128 s0/0/1 Wrong answer. C. ipv6 route 2000::1/128 2012::1 Correct answer. D. ipv6 route 2000::1/128 2012::2 Wrong answer. E. ipv6 route 2000::3/128 2023::3 Correct answer.
Source: Adapted from community discussion — [Removed]
Refer to the exhibit. After the configuration is applied, the two routers fail to establish an OSPF neighbor relationship. What is the reason for the problem?
Answer: C
Ospf processes can differ on each router and neighborship will form Ospf area must be the same to form adjacency Hello and dead timers must match to form adjacency Ospf Default hello timer is 10 and dead timer is 40 In This case R1 hello timer was modified to 5 seconds Timers was not changed on R2 hence using the default timers So C is correct
Source: Adapted from community discussion — [Removed]
Refer to the exhibit. Which route type is configured to reach the Internet?
Answer: D
Only if the PC will ask to go to 10.10.10.18 it will use the network route. When asking to go to the internet the router will use the default gateway - the network route does not include 8.8.8.8 or any other public address Yaki מלך Israel
Source: Adapted from community discussion — yoyosannn
Refer to the exhibit. Which path is used by the router for Internet traffic?
Answer: B
For internet traffic... the destination IP's can vary. Hence in this topology, it is using the default gateway 0.0.0.0. Path selection does not meet any other criteria so it has to use gateway of last resort. Correct me if I'm wrong here folks.
Source: Adapted from community discussion — LTTAM
What is a characteristic of spine-and-leaf architecture?
Answer: D
Ref: Cisco Data Center Spine-and-Leaf Architecture: Design Overview White Paper – Cisco “… Spine-and-leaf architecture … With a spine-and-leaf architecture, no matter which leaf switch to which a server is connected, its traffic always has to cross the same number of devices to get to another server (unless the other server is located on the same leaf). …” A. Each link between leaf switches allows for higher bandwidth. Wrong answer. B. It provides greater predictability on STP blocked ports. Wrong answer. C. It provides variable latency. Wrong answer. D. Each device is separated by the same number of hops. Correct answer.
Source: Adapted from community discussion — [Removed]
When OSPF learns multiple paths to a network, how does it select a route?
Answer: C
A is incorrect because it says to pick the route with the lowest bandwidth, it should be with the highest bandwidth. The higher the bandwidth, the less the cost
Source: Adapted from community discussion — AbdullahMohammad251
When a floating static route is configured, which action ensures that the backup route is used when the primary route fails?
Answer: D
By default, IOS considers static routes better than OSPF-learned routes. By default, IOS gives static routes an administrative distance of 1 A floating static route floats or moves into and out of the IP routing table depending on whether the better (lower) administrative distance route learned by the routing protocol happens to exist currently.
Source: Adapted from community discussion — alexiro
Refer to the exhibit. The show ip ospf interface command has been executed on R1. How is OSPF configured?
Answer: C
From the output we can see there are Designated Router & Backup Designated Router for this OSPF domain so this is a broadcast network (point-to-point and point-to-multipoint networks do not elect DR & BDR). By default, the timers on a broadcast network (Ethernet, point-to-point and point-to-multipoint) are 10 seconds hello and 40 seconds dead. The timers on a non- broadcast network are 30 seconds hello 120 seconds dead. From the line ג€Neighbor Count is 3ג€, we learn there are four OSPF routers in this OSPF domain. Reference: https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13689-17.html
Source: Adapted from community discussion — vadiminski
A user configured OSPF and advertised the Gigabit Ethernet interface in OSPF. By default, to which type of OSPF network does this interface belong?
Answer: C
The Broadcast network type is the default for an OSPF enabled ethernet interface (while Point-to-Point is the default OSPF network type for Serial interface with HDLC and PPP encapsulation so the An is C
Source: Adapted from community discussion — Ahhmedd
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