Module 1-4 Cisco Exam

Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch? A: boot system B: boot loader C: confreg D: config-register

A

Which switch component reduces the amount of packet handling time inside the switch? A: ASIC B: dual processors C: large buffer size D: store-and-forward RAM

A

Which two characteristics describe the native VLAN? (Choose two.) A; The native VLAN provides a common identifier to both ends of a trunk. B: The native VLAN traffic will be untagged across the trunk link. C: Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN. D: High priority traffic, such as voice traffic, uses the native VLAN. E: This VLAN is necessary for remote management of a switch.

A and B

After which step of the switch bootup sequence is the boot loader executed? A: after IOS localization B: after flash file system initialization C: after CPU initialization D: after POST execution

D

Refer to the exhibit. A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output? A: There is a native VLAN mismatch between the switches. B: There is no media connected to the interfaces. C: They are administratively shut down. D: They are configured as trunk interfaces.

D

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame? A: Devices in VLAN 20 and the management VLAN see the frame. B: Only devices in VLAN 20 see the frame. C: All devices in all VLANs see the frame. D: Only devices that are connected to the local switch see the frame.

B

What happens to switch ports after the VLAN to which they are assigned is deleted? A: The ports are assigned to VLAN1, the default VLAN. B: The ports stop communicating with the attached devices. C: The ports are placed in trunk mode. D: The ports are disabled.

B

Which characteristic describes cut-through switching? A; Buffering is used to support different Ethernet speeds. B: Frames are forwarded without any error checking. C: Error-free fragments are forwarded, so switching occurs with lower latency. D: Only outgoing frames are checked for errors.

B

A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed? A: the VLAN assignment and trunking encapsulation B: the VLAN assignment and membership for all switch ports C: the VLAN assignment and membership for device MAC addresses D: the VLAN assignment and native VLAN

C

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command? A: It updates the MAC address table for the associated port. B: It permits an IPv6 address to be configured on a switch physical interface. C: It enters privileged mode. D: It enters configuration mode for a switch virtual interface. E: It enters the global configuration mode.

C

If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed? A: on both ends of the connection B: only on serial interfaces C: on the half-duplex end of the connection D: on the full-duplex end of the connection

C

What is the significant difference between a hub and a Layer 2 LAN switch? A: A hub divides collision domains, and a switch divides broadcast domains. B: Each port of a hub is a collision domain, and each port of a switch is a broadcast domain. C; A hub extends a collision domain, and a switch divides collision domains. D: A hub forwards frames, and a switch forwards only packets.

C

Which impact does adding a Layer 2 switch have on a network? A: an increase in the number of network collisions B: an increase in the size of the collision domain C: an increase in the size of the broadcast domain D: an increase in the number of dropped frames

C

Which switch characteristic helps keep traffic local and alleviates network congestion? A; large frame buffers B: fast internal switching C: high port density D: fast port speed

C

Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port? A; default B: management C: native D: data

C

How do switch buffers affect network performance? They provide extra memory for a particular port if autonegotiation of speed or duplex fails. They provide error checking on the data received. They store frames received, thus preventing premature frame discarding when network congestion occurs. They hold data temporarily when a collision occurs until normal data transmission resumes.

D

On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch? A: Switch(config-if)# no switchport access vlan 100 B: Switch# delete flash:vlan.dat C: Switch(config-if)# no switchport trunk allowed vlan 100 D: Switch(config)# no vlan 100

D

When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method? (Choose two.) A: Multiple SVIs are needed. B: Router-on-a-stick requires multiple physical interfaces on a router. C: Router-on-a-stick requires subinterfaces to be configured on the same subnets. D: A dedicated router is required. E: Multiple subinterfaces may impact the traffic flow speed.

D and E