400-007 Free Practice Test

Which two statements describe the usage of the IS-IS overload bit technique? (Choose two )

1. A. lf overload-bit is set on a Level 2 intermediate system, the other Level 2 intermediate systems in thetopology will stop using the overloaded IS to forward Level 2 traffic However, the intermediate system can still forward Level 1 traffic
2. B. It can be set in intermediate systems (IS-IS routers) to prioritize control plane CSNP packets.
3. C. It can be used to automatically synchronize the link-state database between Level 1 intermediate systems
4. D. It can be set in intermediate systems (IS-IS routers) to avoid traffic black holes until routing protocols are fully converged after a reload operation.
5. E. It can be set in intermediate systems (IS-IS routers) to attract transit traffic from other intermediate systems

Correct Answer: AD

An engineer must design a network for a company that uses OSPF LFA to reduce loops. Which type of loop would be reduced by using this design?

1. A. DTP
2. B. micro loops
3. C. STP
4. D. REP

Correct Answer: B

A customer asks you to perform a high level review of their upcoming WAN refresh for remote sites The review is specially focused on their retail store operations consisting of 500+ locations connected via mutlipoint IPsec VPN solution. Which routing protocol would be valid but would also be the most restrictive for the expansion of this deployment model?

1. A. EIGRP
2. B. IS-IS
3. C. OSPF
4. D. BGP

Correct Answer: B

What is a web-based model in which a third-party provider hosts applications that are available to customers over the Internet?

1. A. PaaS
2. B. SaaS
3. C. laaS
4. D. WaaS

Correct Answer: B

The Company XYZ network is experiencing attacks against their router. Which type of Control Plane Protection must be used on the router to protect all control plane IP traffic that is destined directly for one of the router interfaces?

1. A. Control Plane Protection host subinterface
2. B. Control Plane Protection main interface
3. C. Control Plane Protection transit subinterface
4. D. Control Plane Protection CEF-exception subinterface

Correct Answer: A