Modules 1-3: Basic Network Connectivity and Communications
Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.) - HO Floor 17 - RM-3-Switch-2A4 - SwBranch799 - Branch2! - Floor(15)
- RM-3-Switch-2A4 - SwBranch799
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 frame with the destination MAC address of SwitchB. - ServerB will generate a packet with the destination IP 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 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 HostA.
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.) - VTY interface - console interface - Ethernet interface - boot IOS mode - privileged EXEC mode
- VTY interface - console interface - privileged EXEC mode
Match the description with the associated IOS mode. (Not all options are used.) - changes made affect the operation of the devices as a whole - accessed by entering the enable command - identified by a prompt ending with the # character - limited number of basic monitoring commands - accessed by entering the configure terminal command - the first entrance into the CLI of an IOS device - used to enable the password for vty lines - user EXEC mode, privileged EXEC mode, global configuration mode
- user EXEC mode: limited number of basic monitoring commands the first entrance into the CLI of an IOS device - privileged EXEC mode: accessed by entering the enable command identified by a prompt ending with the # character - global configuration mode: changes made affect the operation of the devices as a whole accessed by entering the enable command accessed by entering the configure terminal command
What is the IP address of the switch virtual interface (SVI) on Switch0? 192.168.10.1 192.168.10.5 192.168.5.0 192.168.5.10
192.168.5.10 (do sho run)
For the TCP/IP protocol suite, what is the correct order of events when a Telnet message is being prepared to be sent over the network? The IP header is added, The TCP header is added, The ethernet header is added, The telnet-formatted data is provided to the next layer first, second, third, fourth
First - the telnet-formatted data is provided to the next layer Second - the TCP header is added Third - the IP header is added Fourth - the ethernet header is added
Match the description to the organization. (Not all options are used.) This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers. This organization is the largest developer of international standards in the world for a wide variety of products and services. It is known for its Open Systems Interconnection (OSI) reference model This organization promotes the open development, evolution, and use of the Internet throughout the world. ISOC, ISO, EIA, IANA
IANA - This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers. ISO - this organization is the largest developer of international standards in the world for a wide variety of products and services. It is known for its Open Systems Interconnection (OSI) reference model. ISOC - this organization promotes the open development, evolution, and use of the Internet throughout the world
While trying to solve a network issue, a technician made multiple changes to the current router configuration file. The changes did not solve the problem and were not saved. What action can the technician take to discard the changes and work with the file in NVRAM? - Issue the reload command without saving the running configuration. - Delete the vlan.dat file and reboot the device. - Close and reopen the terminal emulation software. - Issue the copy startup-config running-config command.
Issue the reload command without saving the running configuration.
What function does pressing the Tab key have when entering a command in IOS? - It moves the cursor to the beginning of the next line. - It aborts the current command and returns to configuration mode. - It completes the remainder of a partially typed word in a command. - It exits configuration mode and returns to user EXEC mode.
It completes the remainder of a partially typed word in a command.
How is SSH different from Telnet? - SSH makes connections over the network, whereas Telnet is for out-of-band access. - 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 provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure and sends messages in plaintext. - 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.
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? - SVI - password encryption - Telnet access - physical switchport access
SVI
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network? - Data is sent from the internet layer to the network access layer. - Packets are sent from the network access layer to the transport layer. - Segments are sent from the transport layer to the internet layer. - Frames are sent from the network access layer to the internet layer.
Segments are sent from the transport layer to the internet layer
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? Switch1> config t 'invalid input detected at '^' marker.' - The entire command, configure terminal, must be used. - The administrator is already in global configuration mode. - The administrator must first enter privileged EXEC mode before issuing the command. - The administrator must connect via the console port to access global configuration mode.
The administrator must first enter privileged EXEC mode before issuing the command.
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 new configuration will be stored in flash memory. - The new configuration will be loaded if the switch is restarted. - 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.
What is a characteristic of multicast messages? - They are sent to a select group of hosts. - They are sent to all hosts on a network. - They must be acknowledged. - They are sent to a single destination.
They are sent to a select group of hosts.
A network administrator enters the service password-encryption command into the configuration mode of a router. What does this command accomplish? - This command encrypts passwords as they are transmitted across serial WAN links. - This command prevents someone from viewing the running configuration passwords. - This command enables a strong encryption algorithm for the enable secret password command. - This command automatically encrypts passwords in configuration files that are currently stored in NVRAM. - This command provides an exclusive encrypted password for external service personnel who are required to do router maintenance.
This command prevents someone from viewing the running configuration passwords.
Which device performs the function of determining the path that messages should take through internetworks? - a router - a firewall - a web server - a DSL modem
a router
Which command or key combination allows a user to return to the previous level in the command hierarchy? - end - exit - Ctrl-Z - Ctrl-C
exit
Provide redundant links and devices.
fault tolerance
What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly? - encapsulation - flow control - access method - response timeout
flow control
Which PDU format is used when bits are received from the network medium by the NIC of a host? - file - frame - packet - segment
frame
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 a wireless network - installing antivirus software - implementing an intrusion detection system - adding a dedicated intrusion prevention device
installing antivirus software implementing a firewall
What layer is responsible for routing messages through an internetwork in the TCP/IP model? - internet - transport - network access - session
internet (4 layers)
At which layer of the OSI model would a logical address be added during encapsulation? - physical layer - data link layer - network layer - transport layer
network layer
Which two OSI model layers have the same functionality as a single layer of the TCP/IP model? (Choose two.) - data link - network - physical - session - transport
physical, datalink
Which method allows a computer to react accordingly when it requests data from a server and the server takes too long to respond? - encapsulation - flow control - access method - response timeout
response timeout
Expand the network without degrading the service fro existing users.
scalability
Protect the network from unauthorized access
security
What command is used to verify the condition of the switch interfaces, including the status of the interfaces and a configured IP address? - ipconfig - ping - traceroute - show ip interface brief
show ip interface brief
What term describes a type of network used by people who work from home or from a small remote office? - SOHO network - BYOD - quality of service - converged network
small office-home office (SOHO)
Match the definitions to their respective CLI hot keys and shortcuts. (Not all options are used.) - displays the next screen - scrolls backwards through previously entered commands - provides context-sensitive help - completes abbreviated commands and parameters - aborts commands such as trace and ping - tab, space bar, up arrow, Ctrl-C, ?, Ctrl-Shift-6
tab - completes abbreviated commands and parameters space bar - displays the next wscreen up arrow - scrolls backwards through previously entered commands ? - provides context-sensitive help Ctrl-Shift-6 - aborts commands such as trace and ping
Why would a Layer 2 switch need an IP address? - to enable the switch to send broadcast frames to attached PCs - to enable the switch to function as a default gateway - to enable the switch to be managed remotely - to enable the switch to receive frames from attached PCs
to enable the switch to be managed remotely
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
to interrupt the ping process
At which OSI layer is a source port number added to a PDU during the encapsulation process? - transport layer - application layer - network layer - presentation layer
transport layer
What type of network traffic requires QoS? - email - on-line purchasing - video conferencing - wiki
video conferencing
