Practice Free 400-007 Exam Online Questions
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.
What best describes the difference between Automation and Orchestration?
- A . Automation refers to an automatic process for completing a single task and Orchestration refers to assembling and coordinating a set of tasks and conditions.
- B . Automation describes a hands-off configuration process while Orchestration refers to sets of automation tasks that require the network administrator to coordinate
- C . Automation refers to an automatic process for completing multiple tasks with conditions and Orchestration refers to executing tasks in parallel.
- D . Automation refers to scripting languages (Python. Ansible etc.) and Orchestration refers to commercial products that control configuration deployment
A network design includes a long signaling delay in notifying the Layer 3 control plane that an interface has failed.
Which two of these actions would reduce that delay? (Choose two.)
- A . Increase network stability.
- B . Reduce the time for the network to reconverge.
- C . Increase the notification of interface flaps.
- D . Enable lower data link layer recovery systems to have an opportunity to restore the interface
Customer XYZ network consists of an MPLS core. IS-IS running as IGP a pair of BGP route reflectors for route propagation, and a few dozens of MPLS-TE tunnels for specific tactical traffic engineering requirements. The customer’s engineering department has some questions about the use of the Overload Bit in the IS-IS networks and how it could be used to improve their current network design.
Which two concepts about the Overload Bit are true? (Choose two.)
- A . It can be set on a router during the startup process for a fixed period of time
- B . Networks advertised within the LSPs of the respective node will become unreachable
- C . It forces the midpoint MPLS-TE node to reoptimize the primary tunnels going through the OL node.
- D . It can be set on a router until other interacting protocols have signaled convergence.
- E . It is not recommended on BGP Route Reflectors
Which component of the SDN architecture automatically ensures that application traffic is routed according to policies established by network administrators?
- A . packet forwarding engine
- B . northbound API
- C . southbound API
- D . SDN controller
Identity and access management between multiple users and multiple applications has become a mandatory requirement for Company XYZ to fight against ever increasing cybersecurity threats. To achieve this, federated identity services have been deployed in the Company XYZ network to provide single sign-on and Multi-Factor Authentication for the applications and services.
Which protocol can be used by Company XYZ to provide authentication and authorization services?
- A . OAuth2
- B . OpenID Connect
- C . OpenID
- D . SAML2.0
A large enterprise cloud design team is evaluating different cloud consumption models.
What is an example of typical PaaS limitations or concerns that should be considered during service design?
- A . vendor lock-in
- B . runtime issues
- C . lack of control
- D . multi-tenant security
Company XYZ is running BGP as their routing protocol. An external design consultant recommends that TCP path MTU discovery be enabled.
Which effect will this have on the network?
- A . It will enhance the performance of TCP-based applications.
- B . It will increase the convergence time.
- C . It will improve the convergence time.
- D . It will create a loop free path.
risk is a major determining factor in whether a company chooses to go with a public cloud, a private, or a hybrid of both.
What are two factors that impact the decision on which cloud service placement model to use? (choose two)
- A . cross zone redundancy
- B . regulation
- C . organization skills
- D . legacy architectures
- E . data ownership
A service provider hires you to design its new managed CE offering to meet these requirements
• The CEs cannot run a routing protocol with the PE
• Provide the ability for equal or unequal ingress load balancing in dual-homed CE scenarios.
• Provide support for IPv6 customer routes
• Scale up to 250.000 CE devices per customer.
• Provide low operational management to scale customer growth.
• Utilize low-end (inexpensive) routing platforms for CE functionality.
Which tunneling technology do you recommend?
- A . FlexVPN
- B . point-to-point GRE
- C . DMVPN
- D . LISP