Practice Free 400-007 Exam Online Questions
Company XYZ Is running a redundant private WAN network using OSPF as the underlay protocol. The current design accommodates for redundancy In the network, but it Is taking over 30 seconds for the network to reconverge upon failure.
Which technique can be Implemented In the design to detect such a failure in a subsecond?
- A . STP
- B . fate sharing
- C . OSPF LFA
- D . BFD
- E . flex links
A senior network designer suggests that you should improve network convergence times by reducing BGP timers between your CE router and the PE router of the service provider.
Which two factors should you consider to adjust the timer values? (Choose two.)
- A . service provider agreement to support tuned timers
- B . manual updates to the peer groups
- C . service provider scheduling of changes to the PE
- D . number of routes on the CE router
- E . number of VRFs on the PE router
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?
- A . Control Plane Protection host subinterface
- B . Control Plane Protection main interface
- C . Control Plane Protection transit subinterface
- D . Control Plane Protection CEF-exception subinterface
Two enterprise networks must be connected together. Both networks are using the same private IP addresses.
The client requests from both sides should be translated using hide NAT (dynamic NAT) with the overload
feature to save IF addresses from the NAT pools.
Which design addresses this requirement using only one Cisco I OS NAT router for both directions?
- A . This is not possible, because two Cisco IOS NAT routers are required to do dynamic NAT, with overload in both directions.
- B . The ip nat inside and ip nat outside commands must be configured at the interfaces with the overload
option in both directions. - C . The overload feature is the default and does not have to be configured.
- D . Two different NAT pools must be used for the ip nat inside source and the ip nat outside source commands for the overload feature in both directions.
- E . The Nat Virtual interface must be used to achieve this requirement.
Which extensions to GRE tunneling provide session tracking and in-order packet delivery in exchange for additional state stored in tunnel endpoints?
- A . GRE Protocol Type and Checksum extension fields.
- B . GRE Version and Reserved0 extension fields.
- C . No extension fields are available in the GRE header to track session data and packet sequences.
- D . GRE Key and Sequence number extensions.
A company plans to use BFD between its routers to detect a connectivity problem inside the switched network. An IPS is transparently installed between the switches.
Which packets should the IPS forward for BFD to work under all circumstances?
- A . Fragmented packet with the do-not-fragment bit set
- B . IP packets with broadcast IP source addresses
- C . IP packets with the multicast IP source address
- D . IP packet with the multicast IP destination address
- E . IP packets with identical source and destination IP addresses
- F . IP packets with the destination IP address 0.0.0.0.
You are designing a network running both IPv4 and IPv6 to deploy QoS.
Which consideration is correct about the QoS for IPv4 and IPv6?
- A . IPv4 and IPv6 traffic types can use use queuing mechanisms such as LLQ, PQ and CQ.
- B . IPv6 packet classification is only available with process switching, whereas IPv4 packet classification is available with both process switching and CEF.
- C . IPv6 and IB/4 traffic types can use a single QoS policy to match both protocols
- D . Different congestion management mechanisms need to be used for IPv4 and IPv6 traffic types
Which MPLS TE design consideration is true?
- A . MPLS TE replaces LDP and the dependency of the IGP to identify the best path.
- B . MPLS TE provides link and node protection
- C . MPLS TE optimizes the routing of IP traffic, given the constraints imposed by backbone capacity and
application requirements. - D . MPLS TE requires Layer 3 VPN full-mesh topology deployment
Company XYZ is redesigning their QoS policy. Some of the applications used by the company are real-time applications. The QoS design must give these applications preference in terms of transmission.
Which QoS strategy can be used to fulfill the requirement?
- A . weighted fair queuing
- B . weighted random early detection
- C . low-latency queuing
- D . first-in first-out
Company XYZ wants to secure the data plane of their network.
Which two technologies can be included in the security design? (Choose two)
- A . DAI
- B . IP Source Guard
- C . BEEP
- D . CPPr
- E . MPP