Which QoS queuing method transmits packets out of the interface in the order the packets arrive?

• A.custom
• B.weighted- fair
• C.FIFO
• D.priority

Correct Answer: C

First-in, first-out (FIFO): FIFO entails no concept of priority or classes of traffic. With FIFO, transmission of packets out the interface occurs in the order the packets arrive, which means no QoS.

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A network engineer configures BGP between R1 and R2. Both routers use BGP peer group CORP and are set up to use MD5 authentication. This message is logged to the console of router R1:

Which two configuration allow peering session to from between R1 and R2? Choose two.) A)

B)

C)

D)

E)

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

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Drag and drop characteristics of PIM dense mode from the left to the right.

Correct Answer:

Explanation

PIM-DM supports only source trees - that is, (S,G) entries-and cannot be used to build a shared distribution tree.
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16-5/imc-pim-xe-16-5-book/im PIM dense mode (PIM-DM) uses a push model to flood multicast traffic to every corner of the network. This push model is a brute-force method of delivering data to the receivers. This method would be efficient in certain deployments in which there are active receivers on every subnet in the network. PIM-DM initially floods multicast traffic throughout the network. Routers that have no downstream neighbors prune the unwanted traffic. This process repeats every 3 minutes.
A rendezvous point (RP) is required only in networks running Protocol Independent Multicast sparse mode (PIM-SM).
In PIM dense mode (PIM-DM), multicast traffic is initially flooded to all segments of the network. Routers that have no downstream neighbors or directly connected receivers prune back the unwanted traffic.

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Refer to the exhibit.

A network engineer is enabling logging to a local buffer, to the terminal and to a syslog server for all debugging level logs filtered by facility code 7. Which command is needed to complete this configuration snippet?

• A.logging buffered discriminator Disc1 debugging
• B.logging discriminator Disc1 severity includes 7
• C.logging buffered debugging
• D.logging discriminator Disc1 severity includes 7 facility includes fac7

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Refer to the exhibit.

An engineer must modify the access control list EGRESS to allow all IP traffic from subnet 10.1.10.0/24 to
10.1.2.0/24. The access control list is applied in the outbound direction on router interface GigabitEthemet 0/1.
Which configuration commands can the engineer use to allow this traffic without disrupting existing traffic flows?
A)

B)

C)

D)

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

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