Ucertify provides the actual examinees with the no cost downloadable 400-101 exam questions. You can take a quiz to have a look at the questions and answers quality associated with ourCisco Cisco training materials before an individual purchase the idea. It is in addition helpful for you personally to seek out your current Cisco exam weakness, then you definitely should operate harder on this in your afterwards study. All of the Cisco certification study items can be found at Ucertify website. You are able to download them for free according to your personal requires.
2021 Apr 400-101 exam fees
Q221. Refer to the exhibit.
You have just created a new VRF on PE3. You have enabled debug ip bgp vpnv4 unicast updates on PE1, and you can see the route in the debug, but not in the BGP VPNv4 table.
Which two statements are true? (Choose two.)
A. VPNv4 is not configured between PE1 and PE3.
B. address-family ipv4 vrf is not configured on PE3.
C. After you configure route-target import 999:999 for a VRF on PE3, the route will be accepted.
D. PE1 will reject the route due to automatic route filtering.
E. After you configure route-target import 999:999 for a VRF on PE1, the route will be accepted.
Answer: D,E
Explanation:
The route target extended community for VPLS auto-discovery defines the import and export policies that a VPLS instance uses. The export route target sets an extended community attribute number that is appended to all routes that are exported from the VPLS instance. The import route target value sets a filter that determines the routes that are accepted into the VPLS instance. Any route with a value in its import route target contained in its extended attributes field matching the value in the VPLS instance’s import route target are accepted. Otherwise the route is rejected.
Q222. Which two statements describe characteristics of HDLC on Cisco routers? (Choose two.)
A. It supports multiple Layer 3 protocols.
B. It supports multiplexing.
C. It supports only synchronous interfaces.
D. It supports authentication.
Answer: A,C
Explanation:
Cisco High-Level Data Link Controller (HDLC) is the Cisco proprietary protocol for sending data over synchronous serial links using HDLC. Cisco HDLC also provides a simple control protocol called Serial Line Address Resolution Protocol (SLARP) to maintain serial link keepalives. Cisco HDLC is the default for data encapsulation at Layer 2 (data link) of the Open System Interconnection (OSI) stack for efficient packet delineation and error control. The absence of a protocol type field in the HDLC header posed a problem for links that carried traffic from more than one Layer 3 protocol. Cisco, therefore, added an extra Type field to the HDLC header, creating a Cisco-specific version of HDLC. Cisco routers can support multiple network layer protocols on the same HDLC link. For example an HDLC link between two Cisco routers can forward both IPv4 and IPv6 packets because the Type field can identify which type of packet is carried inside each HDLC frame.
Reference: http://www.cisco.com/c/en/us/td/docs/routers/access/800/819/software/configuration/Guide/
819_SCG/6ser_conf.html#pgfId-1073734
Q223. Which topology allows the split-horizon rule to be safely disabled when using EIGRP?
A. full mesh
B. partial mesh
C. hub and spoke
D. ring
Answer: C
Q224. In a network where a Layer 2 switch interconnects several routers, which feature restricts multicast packets for each IP multicast group to only those mulicast router ports that have downstream receivers joined to that group?
A. PIM snooping
B. IGMP snooping
C. IGMP filter
D. IGMP proxy
Answer: A
Explanation:
In networks where a Layer 2 switch interconnects several routers, such as an Internet exchange point (IXP), the switch floods IP multicast packets on all multicast router ports by default, even if there are no multicast receivers downstream. With PIM snooping enabled, the switch restricts multicast packets for each IP multicast group to only those multicast router ports that have downstream receivers joined to that group. When you enable PIM snooping, the switch learns which multicast router ports need to receive the multicast traffic within a specific VLAN by listening to the PIM hello messages, PIM join and prune messages, and bidirectional PIM designated forwarder-election messages.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/snooppim.html
Q225. Refer to the exhibit.
If the network switch is configured as shown, which two statements about network traffic are true? (Choose two.)
A. Traffic enters the shaper on a FIFO basis.
B. Traffic enters the shaper on a weighted fair queueing basis.
C. Drop behavior is random for traffic in excess of 6 Mbps.
D. Voice traffic is given priority until it reaches 1.5 Mbps.
E. Voice traffic is given priority until it reaches 6 Mbps.
Answer: A,D
Explanation:
A. Serial interfaces at E1 (2.048 Mbps) and below use weighted fair queueing (WFQ) by default. Other interfaces use first-in first-out (FIFO) by default.
D. Voice traffic is given priority up to 25% of the shape average value, which is 6000000, so 25% of 6 Mbps is 1.5 Mbps.
Improved 400-101 exam fees:
Q226. DRAG DROP
Drag and drop the EIGRP query condition on the left to the corresponding action taken by the router on the right.
Answer:
Q227. What is the maximum number of classes that MQC can support in a single policy map?
A. 512
B. 256
C. 128
D. 64
Answer: B
Q228. When you implement CoPP on your network, what is its default action?
A. permit all traffic
B. rate-limit bidirectional traffic to the control plane
C. drop management ingress traffic to the control plane
D. monitor ingress and egress traffic to the control plane by using access groups that are applied to the interface
E. block all traffic
Answer: A
Q229. What is the new designation for the MPLS EXP (experimental) bits?
A. QoS bits
B. traffic class bits
C. flow bits
D. precedence bits
Answer: B
Explanation:
To avoid misunderstanding about how this field may be used, it has become increasingly necessary to rename this field. This document changes the name of the EXP field to the "Traffic Class field" ("TC field"). In doing so, it also updates documents that define the current use of the EXP field.
Reference: https://tools.ietf.org/html/rfc5462
Q230. Which two statements about IOS and IOS XE are true? (Choose two.)
A. IOS XE can upgrade and restart applications independently of IOS.
B. Only IOS uses the FFM to provide separation between the control plane and the data plane.
C. IOS XE provides improved functionality and an enhanced UI.
D. Only IOS runs as a single daemon within the Linux OS.
E. IOS XE provides additional system functions that run as multiple separate processes in the OS.
Answer: A,E