QoS

Question 1

Control Plane Policing (CPP)

Answer 1

-QoS filter to manage traffic flow of control plane packets
-Protect control plane of Cisco iOS devices from DoS and recon attacks

Question 2

Quality of Service (QoS)

Answer 2

*Enables optimization of network based on traffic type
*Forwards traffic
- priority markings
- traffic type (voice, files transfer, video…)
*Categorize traffic
*Apply a policy

Question 3

Best Effort - No QoS

Answer 3

First in first out

Question 4

Integrated Services (IntServ) - Hard QoS

Answer 4

Strict bandwidth reservations

Question 5

Differentiated Services (DiffServ) - Soft QoS

Answer 5

-Network devices make decisions based on markings and fluctuate traffic
-Differentiation of data types

Question 6

Marking (QoS)

Answer 6

-Alters bits in PDU
-Indicates handling of traffic (QoS)

Question 7

Classification (QoS)

Answer 7

Traffic is placed into different categories (QoS)

Question 8

Congestion Management
(QoS)

Answer 8

-Determines the order packets are sent out
-Queues/Buffers traffic

Question 9

Congestion Avoidance
(QoS)

Answer 9

Discards packets if device’s output queue at capacity (QoS)

Question 10

Policing
(QoS)

Answer 10

Discards packets exceeding configured rate limit
(Speed limit)

Question 11

Shaping
(QoS)

Answer 11

Buffer delays traffic from exceeding configured rate (QoS)

Question 12

Link Efficiency: Compression (QoS)

Answer 12

-Packet Payload is compressed
-Conserve bandwidth
(QoS)

Question 13

Link Efficiency: Link Fragmentation and Interleaving (LFI) (QoS)

Answer 13

Fragments large data packets and interleaves smaller data packets between the fragmented packets

Question 14

What layer dose QoS operate at?

Answer 14

Layer 2 and 3