Question 1

Which of the following three statements are correct regarding IPv6 QoS?  (Choose three.)

Accepted Answer

A)  The traffic class field in the IPv6 header can be used to set specific precedence or DSCP values. 
B)  A 20-bit flow label field enables per-flow processing. 
C)  DS-TE is not supported by IPv6. 
D)  Per-hop behavior in IPv6 networks is based on EXP bits. 
E)  IPv6 QoS features are configured using the modular QoS CLI on Cisco routers. 
A)  The traffic class field in the IPv6 header can be used to set specific precedence or DSCP values. 
B)  A 20-bit flow label field enables per-flow processing. 
C)  DS-TE is not supported by IPv6. 
D)  Per-hop behavior in IPv6 networks is based on EXP bits. 
E)  IPv6 QoS features are configured using the modular QoS CLI on Cisco routers.

Question 2

When configuring class-based WRED on Cisco routers, which WRED parameter is not user configurable on a Cisco IOS XR but is user configurable on a Cisco IOS and IOS XE?

Accepted Answer

A)  the ingress or egress direction where the class-based WRED policy will be applied 
B)  the maximum threshold 
C)  the minimum threshold 
D)  the mark probability denominator 
A)  the ingress or egress direction where the class-based WRED policy will be applied 
B)  the maximum threshold 
C)  the minimum threshold 
D)  the mark probability denominator

Question 3

When configuring LLQ (strict priority queue) on a traffic class using the Cisco IOS XR priority command on a Cisco ASR9K router, which additional QoS command is required for this traffic class?

Accepted Answer

A)  shape 
B)  police 
C)  random-detect 
D)  bandwidth 
A)  shape 
B)  police 
C)  random-detect 
D)  bandwidth

Question 4

What is a key feature of YANG?

Accepted Answer

A)  use identification 
B)  error prediction 
C)  JAVA compatibility 
D)  reusable types and groupings 
A)  use identification 
B)  error prediction 
C)  JAVA compatibility 
D)  reusable types and groupings

Question 5

Refer to the exhibit. Which two configuration leaves in this YANG model are optional? (Choose two.)

Accepted Answer

A)  last-change 
B)  oper-status 
C)  type 
D)  enabled 
E)  mtu 
A)  last-change 
B)  oper-status 
C)  type 
D)  enabled 
E)  mtu

Question 6

Which method maps MPLS EXP bit 5 to COS 5 on Cisco IOS XE?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 7

What are two advantages of using Python virtual environments? (Choose two.)

Accepted Answer

A)  They allow for multiple Python projects to use different versions of the same dependency without conflict. 
B)  They allow multiple Python applications to share virtual memory between subprocesses. 
C)  They allow for isolated environments where each can use a different version of Python. 
D)  They allow for all Python projects to utilize the same set of shared dependencies. 
E)  They allow for multiple virtual machines to share a single Python environment. 
A)  They allow for multiple Python projects to use different versions of the same dependency without conflict. 
B)  They allow multiple Python applications to share virtual memory between subprocesses. 
C)  They allow for isolated environments where each can use a different version of Python. 
D)  They allow for all Python projects to utilize the same set of shared dependencies. 
E)  They allow for multiple virtual machines to share a single Python environment.

Question 8

In which two Cisco IOS XR configuration modes can mpls ldp igp sync be configured?  (Choose two.)

Accepted Answer

A)  config-ldp 
B)  config-if 
C)  config-ospf-ar 
D)  config-ospf 
E)  config-isis 
A)  config-ldp 
B)  config-if 
C)  config-ospf-ar 
D)  config-ospf 
E)  config-isis

Question 9

On the Cisco IOS XR, which MQC configuration is different than on the Cisco IOS and IOS XE?

Accepted Answer

A)  On the Cisco IOS XR, WRED can only be applied in the output direction. 
B)  On the Cisco IOS XR, marking can only be applied in the input direction. 
C)  On the Cisco IOS XR, LLQ can be applied in the input or output direction. 
D)  On the Cisco IOS XR, LLQ can use up to four priority queues: level 1, level 2, level 3, and level 4. 
A)  On the Cisco IOS XR, WRED can only be applied in the output direction. 
B)  On the Cisco IOS XR, marking can only be applied in the input direction. 
C)  On the Cisco IOS XR, LLQ can be applied in the input or output direction. 
D)  On the Cisco IOS XR, LLQ can use up to four priority queues: level 1, level 2, level 3, and level 4.

Question 10

An engineer must change from using NETCONF for streaming telemetry to telemetry data using gRPC framework because NETCONF uses XML for message and payload encoding. Which two messages and payload encodings does gNMI use? (Choose two.)

Accepted Answer

A)  gNMI notifications with XML 
B)  protobuf notifications with XML 
C)  protobuf payload 
D)  JSON payload 
E)  gNMI notifications with JSON 
A)  gNMI notifications with XML 
B)  protobuf notifications with XML 
C)  protobuf payload 
D)  JSON payload 
E)  gNMI notifications with JSON

Question 11

Which item is not available to be used for QoS classification in Cisco IOS XR?

Accepted Answer

A)  MAC SA 
B)  protocol 
C)  inner EXP 
D)  discard-class 
E)  QoS-group
F) VLAN 
A)  MAC SA 
B)  protocol 
C)  inner EXP 
D)  discard-class 
E)  QoS-group
F) VLAN

Question 12

Which is a format used for the YANG JSON content-type header?

Accepted Answer

A)  application/vnd/yang.data+json 
B)  application/vnd.yang.data+json 
C)  application/yang.data.json 
D)  application/vnd.yang.data json 
A)  application/vnd/yang.data+json 
B)  application/vnd.yang.data+json 
C)  application/yang.data.json 
D)  application/vnd.yang.data json

Question 13

An engineer wants to replace the BLOCK_BAD ACL on the Cisco IOS XE router with this new content. The engineer wants to use RESTCONF for this and constructs a PUT request to the resource/restconf/data/native/ip/access-list/Cisco-IOS-XE-acl:extended=BLOCK_BAD . What must the body look like to achieve the Cisco IOS XE configuration? Desired configutation: ip access-list extended BLOCK_BAD permit ip any host 192.168.20.1 deny ip any any

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 14

Which Cisco IOS XR high-availability feature is used to prevent routes from being used before LDP converges?

Accepted Answer

A)  LDP session protection 
B)  LDP-IGP synchronization 
C)  BFD 
D)  IGP session protection 
A)  LDP session protection 
B)  LDP-IGP synchronization 
C)  BFD 
D)  IGP session protection

Question 15

Only based on the Cisco IOS XR policy-map configuration exhibit,   which statement is correct?

Accepted Answer

A)  All DSCP AF41 marked packets will be dropped when the average queue length reaches 12,000 packets. 
B)  DSCP AF11 marked packets will be randomly dropped when the average queue length reaches 10,000 packets. 
C)  DSCP AF11 and AF41 marked packets are guaranteed a minimum bandwidth of 1 Mb/s. 
D)  DSCP AF11 and AF41 marked packets are guaranteed a maximum bandwidth of 1 Mb/s. 
A)  All DSCP AF41 marked packets will be dropped when the average queue length reaches 12,000 packets. 
B)  DSCP AF11 marked packets will be randomly dropped when the average queue length reaches 10,000 packets. 
C)  DSCP AF11 and AF41 marked packets are guaranteed a minimum bandwidth of 1 Mb/s. 
D)  DSCP AF11 and AF41 marked packets are guaranteed a maximum bandwidth of 1 Mb/s.

Question 16

An automation engineer is trying to configure a destination group to use dial-out telemetry with gRPC on a Cisco IOS XR platform. The template created is failing to apply. Which parameters must be configured?

Accepted Answer

A)  source IP address, source port, encoding, and sampling interval 
B)  source IP address, source port, encoding, and protocol 
C)  destination IP address, destination port, encoding, and sensor path 
D)  destination IP address, destination port, encoding, and protocol 
A)  source IP address, source port, encoding, and sampling interval 
B)  source IP address, source port, encoding, and protocol 
C)  destination IP address, destination port, encoding, and sensor path 
D)  destination IP address, destination port, encoding, and protocol

Question 17

An engineer just completed the installation of Cisco NSO and all of its components. During testing, some of the services are not working properly. To resolve the issue, the engineer started undeploying service instances. What can this cause?

Accepted Answer

A)  It removes the service configuration from the network device only. 
B)  It removes the service configuration from the network and NSO. 
C)  It removes the service configuration from NSO only. 
D)  It runs the service code again when the device is out of sync. 
A)  It removes the service configuration from the network device only. 
B)  It removes the service configuration from the network and NSO. 
C)  It removes the service configuration from NSO only. 
D)  It runs the service code again when the device is out of sync.

Question 18

Refer to the exhibit. What is the significance of "*" before the "father" leaf that is shown in the pyang tree output?

Accepted Answer

A)  It is a node list in a leaf type node. 
B)  The father leaf is a key in the family list type. 
C)  The leaf father is read-write in the family list. 
D)  The node father is read-only in the family list. 
A)  It is a node list in a leaf type node. 
B)  The father leaf is a key in the family list type. 
C)  The leaf father is read-write in the family list. 
D)  The node father is read-only in the family list.

Question 19

When using Cisco YDK, which syntax configures the BGP ASN using OpenConfig BGP?

Accepted Answer

A)  bgp.config.as_ = 65000 
B)  bgp.global_.config.as = 65000 
C)  bgp.global.config.as_ = 65000 
D)  bgp.global_.config.as_ = 65000 
A)  bgp.config.as_ = 65000 
B)  bgp.global_.config.as = 65000 
C)  bgp.global.config.as_ = 65000 
D)  bgp.global_.config.as_ = 65000

Question 20

Refer to the exhibit. What is the effect of the script on the device?

Accepted Answer

A)  All interfaces except GigabitEthernet2 are reset to their default configurations. 
B)  It replaces the entire configuration for GigabitEthernet2 on the device using RESTCONF. 
C)  It merges the new configuration with the existing configuration on the device using RESTCONF. 
D)  It compares the configuration to the device. If it matches, the device sends back an HTTP 204 status code. 
A)  All interfaces except GigabitEthernet2 are reset to their default configurations. 
B)  It replaces the entire configuration for GigabitEthernet2 on the device using RESTCONF. 
C)  It merges the new configuration with the existing configuration on the device using RESTCONF. 
D)  It compares the configuration to the device. If it matches, the device sends back an HTTP 204 status code.

Exam 16: Designing Cisco Data Center Infrastructure (DCID)

Which of the following three statements are correct regarding IPv6 QoS? (Choose three.)

When configuring class-based WRED on Cisco routers, which WRED parameter is not user configurable on a Cisco IOS XR but is user configurable on a Cisco IOS and IOS XE?

When configuring LLQ (strict priority queue) on a traffic class using the Cisco IOS XR priority command on a Cisco ASR9K router, which additional QoS command is required for this traffic class?

What is a key feature of YANG?

Refer to the exhibit. Which two configuration leaves in this YANG model are optional? (Choose two.)

Which method maps MPLS EXP bit 5 to COS 5 on Cisco IOS XE?

What are two advantages of using Python virtual environments? (Choose two.)

In which two Cisco IOS XR configuration modes can mpls ldp igp sync be configured? (Choose two.)

On the Cisco IOS XR, which MQC configuration is different than on the Cisco IOS and IOS XE?

An engineer must change from using NETCONF for streaming telemetry to telemetry data using gRPC framework because NETCONF uses XML for message and payload encoding. Which two messages and payload encodings does gNMI use? (Choose two.)

Which item is not available to be used for QoS classification in Cisco IOS XR?

Which is a format used for the YANG JSON content-type header?

Which Cisco IOS XR high-availability feature is used to prevent routes from being used before LDP converges?

Only based on the Cisco IOS XR policy-map configuration exhibit, which statement is correct?

An automation engineer is trying to configure a destination group to use dial-out telemetry with gRPC on a Cisco IOS XR platform. The template created is failing to apply. Which parameters must be configured?

An engineer just completed the installation of Cisco NSO and all of its components. During testing, some of the services are not working properly. To resolve the issue, the engineer started undeploying service instances. What can this cause?

Refer to the exhibit. What is the significance of "*" before the "father" leaf that is shown in the pyang tree output?

When using Cisco YDK, which syntax configures the BGP ASN using OpenConfig BGP?

Refer to the exhibit. What is the effect of the script on the device?

Supporting Cisco Data Center System Devices (DCTECH)

Cisco Certified Technician Routing & Switching (RSTECH)

Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS)

Cisco Certified Network Associate (CCNA)

Managing Industrial Networks with Cisco Networking Technologies (IMINS)

DevNet Associate (DEVASC)

Conducting Forensic Analysis and Incident Response Using Cisco CyberOps Technologies (CBRFIR)

Implementing Cisco Enterprise Advanced Routing and Services (ENARSI)

Implementing Cisco SD-WAN Solutions (ENSDWI)

Designing Cisco Enterprise Networks (ENSLD)

Designing Cisco Enterprise Wireless Networks (300-425 ENWLSD)

Implementing Cisco Enterprise Wireless Networks (300-430 ENWLSI)

Automating Cisco Enterprise Solutions (ENAUTO)

Implementing Cisco Service Provider Advanced Routing Solutions (SPRI)

Implementing Cisco Service Provider VPN Services (SPVI)

Troubleshooting Cisco Data Center Infrastructure (DCIT)

Implementing Cisco Application Centric Infrastructure (DCACI)

Configuring Cisco MDS 9000 Series Switches (DCSAN)

Implementing Cisco Application Centric Infrastructure - Advanced

Automating Cisco Data Center Solutions (DCAUTO)

Securing Networks with Cisco Firepower (300-710 SNCF)

Implementing and Configuring Cisco Identity Services Engine (300-715 SISE)

Securing Email with Cisco Email Security Appliance (300-720 SESA)

Securing the Web with Cisco Web Security Appliance (300-725 SWSA)

Implementing Secure Solutions with Virtual Private Networks (SVPN 300-730)

Automating Cisco Security Solutions (SAUTO)

Implementing Cisco Collaboration Applications (CLICA)

Implementing Cisco Advanced Call Control and Mobility Services (CLASSM)

Implementing Cisco Collaboration Cloud and Edge Solutions

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Developing Solutions Using Cisco IoT and Edge Platforms (DEVIOT)

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Performing CyberOps Using Core Security Technologies (CBRCOR)

Implementing Cisco Enterprise Network Core Technologies (ENCOR)

Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR)

Implementing and Operating Cisco Data Center Core Technologies (DCCOR)

Implementing and Operating Cisco Security Core Technologies

Implementing Cisco Collaboration Core Technologies (CLCOR)

Developing Applications using Cisco Core Platforms and APIs (DEVCOR)

CCDE Design Written

Deploying Cisco Unified Contact Center Express

Cisco Meraki Solutions Specialist

Securing Cisco Networks with Sourcefire FireAMP Endpoints

Designing Cisco Unified Contact Center Enterprise (UCCED)

Implementing and Supporting Cisco Unified Contact Center Enterprise (UCCEIS)

Cisco Collaboration SaaS Authorization Exam

Cisco Security Architecture for System Engineers

Adopting The Cisco Business Architecture Approach (DTBAA)

Cisco Customer Success Manager (CSM)

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