11-14

What are two reasons to create a network baseline?

• • to identify future abnormal network behavior

• • to determine if the network can deliver the required policies

• • to evaluate security vulnerabilities in the network

• • to design a network according to a proper model

• • to determine what kind of equipment to implement

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

• • The computer has an incorrect subnet mask.

• • The computer has an invalid default gateway address.

• • The cable is not connected properly to the NIC.

• • The computer has an invalid IP address.

In which step of gathering symptoms does the network engineer determine if the problem is at the core, distribution, or access layer of the network?

• • Narrow the scope.

• • Document the symptoms.

• • Determine ownership.

• • Determine the symptoms.

What network design would contain the scope of disruptions on a network should a failure occur?

• • the reduction in the number of redundant devices and connections in the network core

• • the installation of only enterprise class equipment throughout the network

• • the deployment of distribution layer switches in pairs and the division of access layer switch connections between them

• • the configuration of all access layer devices to share a single gateway
    

Which action should be taken when planning for redundancy on a hierarchical network design?

• • add alternate physical paths for data to traverse the network

• • continually purchase backup equipment for the network

• • implement STP portfast between the switches on the network

• • immediately replace a non-functioning module, service or device on a network

What is a definition of a two-tier LAN network design?

• • access and core layers collapsed into one tier, and the distribution layer on a separate tier

• • distribution and core layers collapsed into one tier, and the access layer on a separate tier

• • access, distribution, and core layers collapsed into one tier, with a separate backbone layer

• • access and distribution layers collapsed into one tier, and the core layer on a separate tier

What are two benefits of extending access layer connectivity to users through a wireless medium? (Choose two.)

• • increased flexibility

• • reduced costs

• • decreased number of critical points of failure

• • increased bandwidth availability

• • increased network management options

What is a basic function of the Cisco Borderless Architecture access layer?

• • provides access to the user

• • aggregates Layer 2 broadcast domains

• • aggregates Layer 3 routing boundaries

• • provides fault isolation

Which characteristic would most influence a network design engineer to select a multilayer switch over a Layer 2 switch?

• ability to aggregate multiple ports for maximum data throughput

• • ability to build a routing table

• • ability to have multiple forwarding paths through the switched network based on VLAN number(s)

• • ability to provide power to directly-attached devices and the switch itself

When is the most appropriate time to measure network operations to establish a network performance baseline?

• • during quiet vacation periods, so that the level of non-data traffic can be determined

• • whenever high network use is detected, so that how the network performs under stress can be monitored

• • at the same time each day across a set period of average working days, so that typical traffic patterns can be established

• • at random times during a 10 week period, so that abnormal traffic levels can be detected