400-101 pdf

EnsurepassQUESTION 311 Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree Protocol IEEE 802.1 D? (Choose two.)   A. Designated Root Cost B. bridge ID priority C. max age D. bridge ID MAC address E. Designated Root Priority F. forward delay   Correct Answer: BD     QUESTION 312 If a port configured with STP loop guard stops receiving BPDUs, the port will be put into which state?   A. learning state Read more […]

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EnsurepassQUESTION 301 Refer to the exhibit. A GRE tunnel between R1 and R2 has been configured over an Internet connection. As soon as traffic is sent over the tunnel, high CPU utilization is observed on R1. Reducing the traffic shows a reduction in CPU utilization. What could be a possible cause for the high CPU utilization?     A. The BGP process is processing the complete Internet routing table. B. An MTU issue causes GRE packets to be fragmented. C. A GRE-based DDoS attack Read more […]

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EnsurepassQUESTION 291 Refer to the exhibit. Router RTB is performing one-way redistribution from RIP to OSPF. Which outgoing interface will router RTD choose for packets to the 192.168.0.0/24 network, and why?     A. Fa0/1, because OSPF is a link-state routing protocol B. Fa0/0, because RIP is a distance vector protocol C. Fa0/0, because RIP has a higher administrative distance D. Fa0/0, because OSPF has a lower administrative distance E. Fa0/1, because OSPF has a lower Read more […]

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EnsurepassQUESTION 281 DRAG DROP   Correct Answer:     QUESTION 282 DRAG DROP   Correct Answer:     QUESTION 283 DRAG DROP   Correct Answer:     QUESTION 284 DRAG DROP   Correct Answer:             QUESTION 285 DRAG DROP   Correct Answer:     QUESTION 286 DRAG DROP   Correct Answer:     QUESTION 287 DRAG DROP   Correct Answer:     QUESTION 288 DRAG DROP   Read more […]

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EnsurepassQUESTION 271 Refer to the exhibit. Router 1 and Router 2 use HSRP to provide first hop redundancy for hosts on the 10.1.2.0/24 network. Which feature can provide additional failover coverage for the PC?     A. Cisco Express Forwarding B. NetFlow C. Accounting D. Enhanced Object Tracking   Correct Answer: D     QUESTION 272 Which neighbor-discovery message type is used to verify connectivity to a neighbor when the link-layer address of the neighbor Read more […]

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EnsurepassQUESTION 261 Under Cisco IOS Software, which two features are supported in RADIUS Change of Authorization requests? (Choose two.)   A. session identification B. session reauthentication C. session termination D. host termination   Correct Answer: AC     QUESTION 262 In a PfR environment, which two statements best describe the difference between active mode monitoring and fast mode monitoring? (Choose two.)   A. Active mode monitoring can monitor Read more […]

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EnsurepassQUESTION 251 Which two tunneling techniques determine the IPv4 destination address on a per-packet basis? (Choose two.)   A. 6to4 tunneling B. ISATAP tunneling C. manual tunneling D. GRE tunneling   Correct Answer: AB     QUESTION 252 Refer to the exhibit. Which two statements about this configuration are true? (Choose two.)     A. Spoke devices will be dynamically added to the NHRP mappings. B. The next-hop server address must be configured Read more […]

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EnsurepassQUESTION 241 You are tasked with configuring a router on an OSPF domain to import routes from an EIGRP domain and summarize the routes to 192.168.64.0. Which statement configures the summarized route and provides equal-path route redundancy?   A. area 32 range 192.168.64.0 255.255.192.0 cost 100 B. area 32 range 192.168.64.0 255.255.63.0 cost 100 C. area 32 range 192.168.64.0 255.255.64.0 cost 100 D. area 32 range 192.168.64.0 255.255.192.0 multi-path   Correct Answer: Read more […]

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EnsurepassQUESTION 231 If two OSPF type 3 prefixes have the same metric, and are within the same process, which prefix(es) are installed into the routing table?   A. The route whose originator has the lower router ID. B. Both routes are installed. C. The route whose originator has the higher router ID. D. The first route that is learned.   Correct Answer: B     QUESTION 232 Which OSPF feature supports LSA rate limiting in milliseconds to provide faster convergence? Read more […]

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EnsurepassQUESTION 221 Refer to the exhibit. Which IP packets will be accepted from EBGP neighbor 10.1.1.1?     A. IP packets with a TTL count in the header that is equal to or greater than 253 B. IP packets with a TTL count in the header that is equal to 253 C. IP packets with a TTL count in the header that is equal to or greater than 2 D. IP packets with a TTL count in the header that is equal to 2   Correct Answer: A     QUESTION 222 Which two statements Read more […]

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EnsurepassQUESTION 211 Which two features are supported when Cisco HDLC is implemented? (Choose two.)   A. error recovery B. error detection C. asynchronous links D. multiple protocols   Correct Answer: BD     QUESTION 212 Refer to the exhibit. With these configurations for R1 and R2, which statement about PPP authentication is true?     A. Authentication fails because R1 is missing a username and password. B. R2 responds with the correct authentication Read more […]

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EnsurepassQUESTION 201 Which statement is true about LLDP?   A. LLDP provides VTP support. B. LLDP does not use a multicast address to communicate. C. LLDP can indicate only the duplex setting of a link, and not the speed capabilities. D. LLDP does not support native VLAN indication.   Correct Answer: D     QUESTION 202 Which statement is true when using a VLAN ID from the extended VLAN range (1006?094)?   A. VLANs in the extended VLAN range can be used Read more […]

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EnsurepassQUESTION 181 DRAG DROP   Correct Answer:           QUESTION 182 DRAG DROP   Correct Answer:     QUESTION 183 DRAG DROP   Correct Answer:   QUESTION 184 DRAG DROP   Correct Answer:     QUESTION 185 DRAG DROP   Correct Answer:     QUESTION 186 DRAG DROP   Correct Answer:     QUESTION 187 DRAG DROP   Correct Answer:     QUESTION 188 DRAG DROP   Correct Answer: Read more […]

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EnsurepassQUESTION 191 What is Nagle’s algorithm used for?   A. To increase the latency B. To calculate the best path in distance vector routing protocols C. To calculate the best path in link state routing protocols D. To resolve issues caused by poorly implemented TCP flow control.   Correct Answer: D     QUESTION 192 Which statement is true regarding the UDP checksum?   A. It is used for congestion control. B. It cannot be all zeros. C. It is used Read more […]

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EnsurepassQUESTION 171 Which statement is true about IGMP?   A. Multicast sources send IGMP messages to their first-hop router, which then generates a PIM join message that is then sent to the RP. B. Multicast receivers send IGMP messages to their first-hop router, which then forwards the IGMP messages to the RP. C. IGMP messages are encapsulated in PIM register messages and sent to the RP. D. Multicast receivers send IGMP messages to signal their interest to receive traffic for Read more […]

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EnsurepassQUESTION 161 Which attribute is not part of the BGP extended community when a PE creates a VPN-IPv4 route while running OSPF between PE-CE?   A. OSPF domain identifier B. OSPF route type C. OSPF router ID D. MED E. OSPF network type   Correct Answer: E         QUESTION 162 Refer to the exhibit. While configuring AAA with a local database, users can log in via Telnet, but receive the message “error in authentication” when they try to go into Read more […]

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EnsurepassQUESTION 151 Refer to the exhibit. Which part of the joined group addresses list indicates that the interface has joined the EIGRP multicast group address?     A. FF02::1 B. FF02::1:FF00:200 C. FF02::A D. FF02::2   Correct Answer: C     QUESTION 152 Refer to the exhibit. Which two corrective actions could you take if EIGRP routes from R2 fail to reach R1? (Choose two.)     A. Configure R2 to use a VRF to send routes to R1. B. Configure Read more […]

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EnsurepassQUESTION 141 What are the minimal configuration steps that are required to configure EIGRP HMAC- SHA2 authentication?   A. classic router mode, interface XX, authentication mode hmac-sha-256 <password> B. named router mode, address-family statement, authentication mode hmac-sha-256 <password> C. named router mode, address-family statement, af-interface default, authentication mode hmac-sha-256 <password> D. named router mode, address-family statement, Read more […]

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EnsurepassQUESTION 131 Consider a network that mixes link bandwidths from 128 kb/s to 40 Gb/s. Which value should be set for the OSPF reference bandwidth?   A. Set a value of 128. B. Set a value of 40000. C. Set a manual OSPF cost on each interface. D. Use the default value. E. Set a value of 40000000. F. Set a value of 65535.   Correct Answer: C     QUESTION 132 Which statement about a type 4 LSA in OSPF is true?   A. It is an LSA that is originated Read more […]

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EnsurepassQUESTION 121 Which set of commands conditionally advertises 172.16.0.0/24 as long as 10.10.10.10/32 is in the routing table?   A. B. C. D.   Correct Answer: B     QUESTION 122 Refer to the exhibit. Why is R2 unable to ping the loopback interface of R4?     A. The local preference is too high. B. The weight is too low. C. The next hop is not reachable from R2. D. The route originated from within the same AS.   Correct Answer: Read more […]

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