Routing and Switching Essentials Modules 1-4 Exam 100% Correct Answers!!!

Module 1: Basic Device Configuration - ANS -------------------------- Which tasks can be accomplished by using the command history feature? - ANS Set the command history buffer size Recall previously entered commands Which statement describes the system LED operation on Cisco Catalyst switches? - ANS If the LED is amber, the system is receiving power but it is not functioning properly What type of ethernet cable would be used to connect one switch to another switch when neither switch supports the auto-MADIX feature? - ANS Crossover What advantage does SSH offer over Telnet? - ANS Encryption A network administrator has configured VLAN 99 as the management VLAN and has configured it with an IP address and subnet mask. The administrator issues the show interface vlan 99 command and notices that the line protocol is down. Which action can change the state of the line protocol to up? - ANS Connect a host to an interface associated with VLAN 99 Which statement describes SVIs? - ANS A default SVI is created for VLAN 1 for switch administration. Which prompt is displayed when a network administrator successfully accesses the boot loader on a switch to recover from a system crash? - ANS switch: Which router bootup sequence is correct?​ - ANS 1 - perform the POST and load the bootstrap program 2 - locate and load the Cisco IOS software 3 - locate and load the startup configuration file or enter setup mode What is the first action in the boot sequence when a switch is powered on? - ANS Load a power-on self-test program What must an administrator have in order to reset a lost password on a router? - ANS physical access to the router When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch? - ANS username username secret secret Which command will provide information about the status of all interfaces including the number of giants, runts, and collisions on the interface? - ANS show interfaces Module 2: Switching Concepts - ANS -------------------------- Which statement is true about broadcast and collision domains? - ANS Adding a switch to a network will increase the size of the broadcast domain What is one function of a Layer 2 switch? - ANS determines which interface is used to forward a frame based on the destination MAC address What is the significant different between a hub and a Layer 2 LAN switch? - ANS A switch creates many smaller collision domains, and a hub increases the size of a single collision domain What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table? - ANS Forward the frame out all ports except the port where the frame is received Which switch characteristic helps alleviate network congestion when a 10 Gbps port is forwarding data to a 1 Gbps port? - ANS Frame buffering Which switching method makes use of the FCS value? - ANS store-and-forward What does the term "port density" represent for an Ethernet switch? - ANS The number of available ports Which information does a switch use to keep the MAC address table information current? - ANS The source MAC address and the incoming port Which two statements are true about half-duplex and full-duplex communications? - ANS Full duplex allows both ends to transmit and receive simultaneously Full duplex increases the effective bandwidth Which type of address does a switch use to build the MAC address table? - ANS Source MAC address Which option correctly describes a switching method? - ANS store-and-forward: ensures that the frame is free of physical and data-link errors Which network device can serve as a boundary to divide a Layer 2 broadcast domain? - ANS Router What is the purpose of frame buffers on a switch? - ANS They hold traffic, thus alleviating network congestion. Which network device can be used to eliminate collisions on an Ethernet network? - ANS Switch Module 3: VLANs - ANS -------------------------- What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch? - ANS The port becomes inactive In which memory location are the VLAN configurations of normal range VLANs stored on a Catalyst switch? - ANS Flash An administrator is investigating a failure on a trunk link between a Cisco switch and a switch from another vendor. After a few show commands, the administrator notices that the switches are not negotiating a trunk. What is a probable cause for this issue? - ANS Switches from other vendors do not support DTP What is the purpose of the file on a switch? - ANS It holds the VLAN database What is the purpose of setting the native VLAN separate from data VLANs? - ANS A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs