Top Tips Of Update 400-007 Study Guides

NEW QUESTION 1
Which two features control multicast traffic in a VLAN environment? (Choose two)

• A. IGMP snooping
• B. MLD snooping
• C. RGMP
• D. PIM snooping
• E. pruning

Answer: AB

NEW QUESTION 2
Which mechanism provides Layer 2 fault isolation between data centers?

• A. fabric path
• B. OTL
• C. advanced VPLS
• D. LISP
• E. TRILL

Answer: D

NEW QUESTION 3
When designing a WAN that will be carrying real-time traffic, what are two important reasons to consider serialization delay? (Choose two )

• A. Serialization delays are invariable because they depend only on the line rate of the interface
• B. Serialization delays are variable because they depend on the line rate of the interface and on thetype of the packet being serialized.
• C. Serialization delay is the time required to transmit the packet on the physical media.
• D. Serialization delays are variable because they depend only on the size of the packet beingserialized
• E. Serialization delay depends not only on the line rate of the interface but also on the size of thepacket

Answer: BD

NEW QUESTION 4
What is the most important operational driver in building a resilient and secure modular network design?

• A. Dependencies on hardware or software that is difficult to scale
• B. Minimize app downtime
• C. Reduce the frequency of failures requiring human intervention
• D. Increase time spent on developing new features

Answer: C

NEW QUESTION 5
Which technology is an open-source infrastructure automation tool that automates repetitive tasks
for users who work in networks such as cloud provisioning and intraservice orchestration?

• A. Ansible
• B. Contrail
• C. Java
• D. Jinja2

Answer: A

NEW QUESTION 6
According to the CIA triad principles for network security design, which principle should be priority for a Zero Trust network?

• A. requirement for data-in-motion encryption and 2FA authentication
• B. requirement for data-at-rest encryption foe user identification within the VPN terminationhardware
• C. categorization of systems, data, and enterprise BYOD assets that are connected to networkzones based on individual privacy needs
• D. ensuring that authorized users have high-availability system access from defined zones todefined systems or zones

Answer: A

NEW QUESTION 7
Which encoding format does cisco ios XE software support for NETCONF?

• A. It supports HTML encoding for NETCONF
• B. It supports YAML encoding for NETCONF
• C. It supports XML encoding for NETCONF
• D. It supports JSON encoding for NETCONF

Answer: C

NEW QUESTION 8
Which protocol does an SD-Access wireless Access Point use for its fabric data plane?

• A. GRE
• B. MPLS
• C. VXLAN
• D. LISP
• E. CAPWAP

Answer: C

NEW QUESTION 9
What are two primary design constraints when a robust infrastructure solution is created? (Choose two.)

• A. monitoring capabilities
• B. project time frame
• C. staff experience
• D. component availability
• E. total cost

Answer: BE

NEW QUESTION 10
Which BGP feature provides fast convergence?

• A. BGP PIC |
• B. BGP-EVPN
• C. BGP FlowSpec
• D. BGP-LS

Answer: A

NEW QUESTION 11
Which effect of using ingress filtering to prevent spoofed addresses on a network design is true?

• A. It reduces the effectiveness of DDoS attacks when associated with DSCP remarking to Scavenger.
• B. It protects the network Infrastructure against spoofed DDoS attacks.
• C. It Classifies bogon traffic and remarks it with DSCP bulk.
• D. It filters RFC 1918 IP addresses.

Answer: B

NEW QUESTION 12
Refer to the exhibit.

As part of a redesign project, you must predict multicast behavior.
What happens to the multicast traffic received on the shared tree (*,G), if it is received on the LHR interface indicated*?

• A. It is dropped due to an unsuccessful RPF check against the multicast source
• B. It is switched give that no RPF check is performed
• C. It is switched due to a successful RPF check against the routing table
• D. It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.

Answer: C

NEW QUESTION 13
An MPLS service provider is offering a standard EoMPLS-based VPLS service to CustomerA providing Layer 2 connectivity between a central site and approximately 100 remote sites.
CustomerA wants to use the VPLS network to carry its internal multicast video feeds which are sourced at the central site and consist of 20 groups at Mbps each.
Which service provider recommendation offers the most scalability?

• A. EoMPLS-based VPLS can carry multicast traffic in a scalable manner
• B. Use a mesh of GRE tunnels to carry the streams between sites
• C. Enable snooping mechanisms on the provider PE routers.
• D. Replace VPLS with a Layer 3 MVPN solution to carry the streams between sites

Answer: D

NEW QUESTION 14
Which two design option are available to dynamically discover the RP in an IPv6 multicast network? (Choose two)

• A. embedded RP
• B. MSDP
• C. BSR
• D. Auto-RP
• E. MLD

Answer: AC

NEW QUESTION 15
What best describes the difference between Automation and Orchestration?

• A. Automation refers to an automatic process for completing a single task and Orchestration refersto assembling and coordinating a set of tasks and conditions.
• B. Automation describes a hands-off configuration process while Orchestration refers to sets ofautomation tasks that require the network administrator to coordinate
• C. Automation refers to an automatic process for completing multiple tasks with conditions andOrchestration refers to executing tasks in parallel.
• D. Automation refers to scripting languages (Pytho
• E. Ansible etc.) and Orchestration refers tocommercial products that control configuration deployment

Answer: A

NEW QUESTION 16
......