Accurate 400-101 Q&A 2021

NEW QUESTION 1
Which two statements about VPLS are true? (Choose two.)

• A. Split horizon is used on PE device to prevent loops.
• B. Spanning tree is extended from CE to CE.
• C. IP is used to switch Ethernet frames between sites.
• D. PE routers dynamically associate to peers.
• E. VPLS extends a Layer 2 broadcast domain.

Answer: AE

NEW QUESTION 2
Refer to the exhibit.

lf the web Server has been configured to listen only to TCP port 8080 for all HTTP requests, which command can you enter to how internet users to access the web server on HTIP port 80?

• A. ip nat inside source static tcp 10.1.1.100 8080 10.1.1.100 80
• B. ip nat inside source static tcp 10.1.1.100 80 10.1.1.100 8080
• C. ip nat outside source static tcp 10.1.1.100 8080 10.1.1.100 80
• D. ip nat outside source static tcp 10.1.1.100 80 10.1.1.100 8080

Answer: A

NEW QUESTION 3
How should voice traffic be marked for DSCP in a standard QoS policy?

• A. AF21
• B. EF
• C. CS3
• D. AF41

Answer: B

NEW QUESTION 4
What are two conditions that can cause UDLD to move an interface into the emlisable state? (Choose two.)

• A. A switch receives its own UDLD message on the same port it has sent it from.
• B. UDLD detects a mismatch between timer settings on neighboring switches.
• C. The list of detected neighbors in a received UDLD message is missing the receiving switch ID and port ID combination.
• D. An ACL denying all IP traffic is applied to a switchport.
• E. A port in normal UDLO mode fails to receive a UDLD message for a prolonged time period .

Answer: CD

NEW QUESTION 5
Which two options are 802.15.4 node types? (Choose two)

• A. Limited Function Device
• B. Reduced Function Device
• C. Expanded Function Device
• D. Mesh Function Device
• E. Full Function Device

Answer: BE

NEW QUESTION 6
Which two statements about IPv4 and IPv6 networks are true? (Choose two.)

• A. In IPv6, hosts perform fragmentation.
• B. IPv6 uses a UDP checksum to verify packet integrity.
• C. In IPv6, routers perform fragmentation.
• D. In IPv4, fragmentation is performed by the source of the packet.
• E. IPv4 uses an optional checksum at the transport layer.
• F. IPv6 uses a required checksum at the network layer.

Answer: AB

NEW QUESTION 7
Whid1 two statements about HDLC are true? (Choose two.)

• A. It is a frame-oriented data link layer protocol.
• B. The packet header contains the control field and address.
• C. It supports clear-text authentication.
• D. It Supports both synchronous and asynchronous serial inks.
• E. It guarantees error-free transmission.

Answer: BE

NEW QUESTION 8
Which statement about PMTUD is true?

• A. It is supported by TCP and UDP.
• B. GRE tunnels use PMTUD to fragment data packets by default.
• C. It is used to prevent fragmentation of packets at the endpoint of a TCP connection.
• D. It is used to prevent fragmentation of packets traveling across a smaller MTU link between two endpoints.
• E. It increases the connection's send MSS value to prevent fragmentation.

Answer: A

NEW QUESTION 9
Which IS-IS router becomes adjacent to all other routers on a broadcast network?

• A. DR
• B. Level1/Level 2 Intermediate System
• C. ABR
• D. DIS

Answer: D

NEW QUESTION 10
Refer to the exhibit.

Which two route types are advertised by a router with this configuration? (Choose two)

• A. stark
• B. summary
• C. connected
• D. redistributed
• E. external

Answer: BC

NEW QUESTION 11
When you deploy DMVPN, what is the purpose of the command crypto is a kmp key ciscotest address 0.0.0.0 0.0.0.0?

• A. It is configured on hub and spoke router to establish peering
• B. It is configured on hub to set the pre-shared key for the spoke routers
• C. It is configured on the spokes to indicate the hub router
• D. It is configured on the Internet PE routers to allow traffic to traverse the ISP core

Answer: B

NEW QUESTION 12
What is the reason to send EIGRP SIA reply to a peer?

• A. to respond to an SIA query that the router is still waiting on replies from its peers
• B. to respond to a reply reporting that the prefix has gone stuck-in-active
• C. to respond to a query reporting that the prefix has gone stuck-in-active
• D. to respond to an SIA query with the alternative path requested

Answer: A

NEW QUESTION 13
Refer to the exhibit.

While troubleshooting a connectivity issue between R1 and R2, you determine that R1's Loopback0 network is missing from R2's route table. What are two actions you could take to resolve the problem? (Choose two.)

• A. Configure the same router ID under the EIGRP process of each router.
• B. Configure a different router 10 under the EIGRP process of each router.
• C. Increase the distance of internal EIGRP routes on R1.
• D. Increase the distance of external EIGRP routes on R1.
• E. Configure default metrics under the router eigrp process.
• F. Add EIGRP metrics that the redistribute connected command or R1.

Answer: EF

NEW QUESTION 14
Refer to the exhibit.

Which two configurations must you apply to R2 so that it correctly translates the Internal to a public IP address? (Choose two.)

• A. Option
• B. Option
• C. Option
• D. Option
• E. Option

Answer: BE

NEW QUESTION 15
Which command can you enter to prevent IS-IS PDUs from using the full MTU size?

• A. Metric-style wide
• B. Set-overloaded-bit on-startup wait-for-bgp suppress interievel
• C. Set-overload-bit on-startup 120
• D. No hello padding

Answer: C

NEW QUESTION 16
DRAG DROP
Drag and drop the BGP attribute on the left to the correct category on the right. Not all options will be used.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 17
Which description correctly describes Git?

• A. Git is a version control system for tracking changes in files
• B. Git is a web-based repository for sharing files
• C. Git is a configuration management tool that automates provisioning
• D. Git is a command-line utility for creating archives of files

Answer: A

NEW QUESTION 18
Which option describes how a VTPv3 device responds when it detects a VTPv2 device on a trunk port?

• A. It sends a special packet that contains VTPv3 and VTPv2 packet information
• B. It sends VTPv2 packets only
• C. It sends VTPv3 and VTPv2 packets
• D. It sends VTPv3 packets only

Answer: C

NEW QUESTION 19
When routing a multicast packet for a multicast group, what are two effects of having the ip pim spars dense-mode command configured on an interface?

• A. If the rendezvous point for the group is known, the packet will be forwarded over the interface according to sparse mode rules.
• B. If the rendezvous point for the group is unknown, the packet will be forwarded over the interface according to sparse mode rules.
• C. If the rendezvous point for the group is known, the packet will be forwarded over the interface according to the spars dense mode rules.
• D. If the rendezvous port for the group is unknown, the packet will be forwarded over the interface according to dense mote rules.
• E. If the rendezvous port for the group is unknown, the packet will be forwarded over the interface according both sparse and dense mode rules.
• F. If the rendezvous point for the group is known, the packet will be forwarded over the interface according dense mode rules.

Answer: AD

NEW QUESTION 20
Refer to the exhibit.

What are two effects of the given configuration? (Choose two.)

• A. The router will fail to form neighbor adjacencies over all EIGRP interfaces except F0/0
• B. The router will fail to form neighbor adjacencies over interfaces F0/0
• C. The router will manually summarize the 192.168.12.0127 network
• D. The router will install the 192.168.12.0/27 network into its EIGRP topology table
• E. Auto-summarization will be enabled to the FO/O interface

Answer: BD

NEW QUESTION 21
DRAG DROP
Drag and drop each BGP attribute on the left into the priority order in which the attributes are preferred when determining the best path on the right.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 22
Refer to the exhibit.

Which statement describes what the authoritative flag indicates?

• A. Authentication was used for the mapping.
• B. R1 learned about the NHRP mapping from a registration request.
• C. Duplicate mapping in the NHRP cache is prevented.
• D. The registration request had the same flag set.

Answer: B

NEW QUESTION 23
Which PIM mode uses a shared tree only?

• A. Source-specific mode
• B. Sparse mode
• C. Bidirectional mode
• D. Dense mode

Answer: B

NEW QUESTION 24
Refer to the exhibit.

What are two effects of the given configuration? (Choose two)

• A. The router will advertise the 172.16.1.1/32 network.
• B. The router will stop sending hello packets on Loopback.1.
• C. The router will advertise the 192.168.12.0/24 network.
• D. The router will send hello packets from Loopback0.
• E. The router will advertise the 172 16.11.11/32 network
• F. The router will stop sending and receiving IS-IS packets on Loopback0.

Answer: AF

NEW QUESTION 25
Which two statements about the PIM Assert message are true? (Choose two.)

• A. It elects the device with the lowest administrative distance to the multicast source as the PIM Designated Router.
• B. II is triggered when multiple routers connected to a common LAN segment forward the same multicast packet.
• C. It elects the device with the lowest IP address on the LAN segment as the PJM forwarder.
• D. It elects the PIM router with the highest IP address on the LAN segment as the forwarder if remaining metrics are the same.
• E. It determines which router connected to a common LAN segment becomes the PIM Designated Router.
• F. It is triggered when multiple routers connected to a common LAN segment receive the same IGMP join request from a multicast receiver

Answer: BD

NEW QUESTION 26
Which two statements about root guard are true? (Choose two)

• A. It allows unknown devices to participate in STP
• B. It automatically re-enables blocked ports
• C. It requires the administrator to manually re-enable ports that have been blocked
• D. It supports the errdisable-timeout command
• E. It automatically error-disables a port when PortFast is enabled
• F. It blocks BPDUs from unknown devices

Answer: CD

NEW QUESTION 27
Which command can you enter to disable logging for VTY lines?

• A. no logging console
• B. no logging trap
• C. no logging buffer
• D. no logging count
• E. no logging monitor

Answer: E

NEW QUESTION 28
Which feature must be enabled so that an IS-IS single topology can support IPv6 traffic?

• A. New-style TLVs only
• B. Adjacency checking
• C. Old-style TVLs only
• D. Extended metrics
• E. Both new-and old-style TLVs

Answer: B

NEW QUESTION 29
......