What type of network traffic requires QoS?

wiki on-line purchasing email video conferencing

A user is implementing security on a small office network. Which two actions would provide the minimum security requirements for this network? (Choose two.)

implementing a firewall installing antivirus software adding a dedicated intrusion prevention device installing a wireless network implementing an intrusion detection system

What command will prevent all unencrypted passwords from displaying in plain text in a configuration file?

(config)# enable password secret (config-line)# password secret (config)# enable secret Encrypted_Password (config)# enable secret Secret_Password (config)# service password-encryption

Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords. (Choose three.)

Privileged EXEC mode Ethernet interface Console interface VTY interface Router configuration mode Boot IOS mode

Which command or key combination allows a user to return to the previous level in the command hierarchy?

Exit Ctrl-C End Ctrl-Z

After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command?

The current IOS file will be replaced with the newly configured file. The configuration changes will be removed and the original configuration will be restored. The new configuration will be loaded if the switch is restarted. The new configuration will be stored in flash memory.

How is SSH different from Telnet?

SSH must be configured over an active network connection, whereas Telnet is used to connect to a device from a console connection. SSH provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure and sends messages in plaintext. SSH requires the use of the PuTTY terminal emulation program. Tera Term must be used to connect to devices through the use of Telnet. SSH makes connections over the network, whereas Telnet is for out-of-band access.

What are two characteristics of RAM on a Cisco device? (Choose two.)

RAM provides nonvolatile storage. The contents of RAM are lost during a power cycle. RAM is able to store multiple versions of IOS and configuration files. RAM is a component in Cisco switches but not in Cisco routers. The configuration that is actively running on the device is stored in RAM.

A technician configures a switch with these commands:

SwitchA(config)# interface vlan 1
SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0
SwitchA(config-if)# no shutdown
What is the technician configuring?
Password encryption SVI Telnet access Physical switchport access

Which interface allows remote management of a Layer 2 switch?

the console port interface the first Ethernet port interface the AUX interface the switch virtual interface

An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?

to restart the ping process to exit to a different configuration mode to allow the user to complete the command to interrupt the ping process

What are three characteristics of an SVI? (Choose three.)

It is not associated with any physical interface on a switch. It is associated with VLAN1 by default. It is required to allow connectivity by any device at any location. It is designed as a security protocol to protect switch ports. It provides a means to remotely manage a switch. It is a special interface that allows connectivity by different types of media.

In the show running-config command, which part of the syntax is represented by running-config?

a keyword a variable a prompt the command

A network administrator enters the service password-encryption command into the configuration mode of a router. What does this command accomplish?

This command prevents someone from viewing the running configuration passwords. This command provides an exclusive encrypted password for external service personnel who are required to do router maintenance. This command enables a strong encryption algorithm for the enable secret password command. This command encrypts passwords as they are transmitted across serial WAN links. This command automatically encrypts passwords in configuration files that are currently stored in NVRAM.

What function does pressing the Tab key have when entering a command in IOS?

It aborts the current command and returns to configuration mode. It moves the cursor to the beginning of the next line. It completes the remainder of a partially typed word in a command. It exits configuration mode and returns to user EXEC mode.

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?

Frames are sent from the network access layer to the internet layer. Segments are sent from the transport layer to the internet layer. Packets are sent from the network access layer to the transport layer. Data is sent from the internet layer to the network access layer.

What is an advantage of network devices using open standard protocols?

Network communications is confined to data transfers between devices from the same vendor. A client host and a server running different operating systems can successfully exchange data. Internet access can be controlled by a single ISP in each market. Competition and innovation are limited to specific types of products.

A web client is receiving a response for a web page from a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to decode the received transmission?

HTTP, Ethernet, IP, TCP Ethernet, TCP, IP, HTTP Ethernet, IP, TCP, HTTP HTTP, TCP, IP, Ethernet

Refer to the exhibit. ServerB is attempting to contact HostA. Which two statements correctly identify the addressing that ServerB will generate in the process? (Choose two.)

ServerB will generate a packet with the destination IP address of RouterA. ServerB will generate a frame with the destination MAC address of SwitchB. ServerB will generate a packet with the destination IP address of HostA. ServerB will generate a frame with the destination MAC address of RouterB. ServerB will generate a frame with the destination MAC address of RouterA. ServerB will generate a packet with the destination IP address of RouterB.

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)

DNS PPP NAT ARP FTP DHCP

At which layer of the OSI model would a logical address be added during encapsulation?

data link layer physical layer network layer transport layer

Which two OSI model layers have the same functionality as a single layer of the TCP/IP model? (Choose two.)

transport session data link network physical

Which method allows a computer to react accordingly when it requests data from a server and the server takes too long to respond?

access method flow control response timeout encapsulation

What process involves placing one PDU inside of another PDU?

flow control segmentation encapsulation encoding

What layer is responsible for routing messages through an internetwork in the TCP/IP model?

transport network access session internet

Which name is assigned to the transport layer PDU?

packet data segment frame bits

Why would a Layer 2 switch need an IP address?

to enable the switch to receive frames from attached PCs to enable the switch to be managed remotely to enable the switch to function as a default gateway to enable the switch to send broadcast frames to attached PCs

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
What is the IP address of the switch virtual interface (SVI) on Switch0?

192.168.10.5 192.168.5.10 192.168.5.0 192.168.10.1

Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?

The administrator is already in global configuration mode. The administrator must connect via the console port to access global configuration mode. The entire command, configure terminal, must be used. The administrator must first enter privileged EXEC mode before issuing the command.

Which device performs the function of determining the path that messages should take through internetworks?

a DSL modem a web server a router a firewall

What term describes a network where one computer can be both client and server?

Quality of service Cloud Peer-to-peer BYOD

At which OSI layer is data added to a PDU during the encapsulation process?

transport layer network layer presentation layer application layer

A networking technician is working on the wireless network at a medical clinic. The technician accidentally sets up the wireless network so that patients can see the medical records data of other patients. Which of the four network characteristics has been violated in this situation?

Quality of Service (QoS) Security Fault tolerance Scalability Reliability

Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.)

Floor(15) HO Floor 17 RM-3-Switch-2A4 SwBranch799 Branch2!

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user EXEC mode?

linevtyin secretin letmein lineconin

What command is used to verify the condition of the switch interfaces, including the status of the interfaces and a configured IP address?

traceroute ipconfig show ip interface brief ping

Refer to the exhibit. ServerB is attempting to contact HostA. Which two statements correctly identify the addressing that ServerB will generate in the process? (Choose two.)

ServerB will generate a packet with the destination IP address of RouterB. ServerB will generate a packet with the destination IP address of HostA. ServerB will generate a frame with the destination MAC address of RouterA. ServerB will generate a frame with the destination MAC address of RouterB. ServerB will generate a packet with the destination IP address of RouterA. ServerB will generate a frame with the destination MAC address of SwitchB.

When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address?

Subnet mask Default gateway DNS server address DHCP server address

What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?

flow control access method response timeout encapsulation

Which statement is correct about network protocols?

Network protocols define the type of hardware that is used and how it is mounted in racks. They define how messages are exchanged between the source and the destination. They all function in the network access layer of TCP/IP. They are only required for exchange of messages between devices on remote networks.