Module 1-3 Exam Flashcards
(28 cards)
What type of network traffic requires QoS?
Video conferencing
A network tech is working on wireless network at a medical clinic. The tech accidentally sets up the wireless network so the patients can see medical records of other patients. Which of the 4 characteristics have been violated?
Security
This organization promotes the open development, evolution, & use of the internet through the world.
ISOC
This organization is the largest developer of international standards in the world for a wide variety of products & services. It’s known for its open systems interconnection (OSI) reference model.
ISO
This organization is responsible for overseeing & managing IP address allocation, domain name management, and protocol identifiers.
IANA
An administrator uses Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose?
To interrupt the ping process
How is SSH different from Telnet?
SSH provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure & sends messages in plaintext.
What command is used to verify the condition of the switch interfaces, including the status of the interfaces and a configured IP address?
Show ip interface brief
Which interface allows remote management of a Layer 2 switch?
The switch virtual interface
After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of this command?
The new configuration will be loaded if the switch is restarted.
What command will prevent all unencrypted passwords from displaying in plain text in a configuration file?
(Config)#service password-encryption
What function does pressing the Tab key have when entering a command in IOS?
It completes the remainder of a partially typed word in a command.
What are two characteristics of RAM on a Cisco device?
- The configuration that is actively running on the device is stored in RAM.
- The contents of RAM are lost during a power cycle.
What command or key combination allows a user to return to the previous level in the command hierarchy?
Exit
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
What process involved placing one PDU inside of another PDU?
Encapsulation
Which method allows a computer to react accordingly when it requests data from a server and the server takes too long to respond?
Response timeout
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?
Ethernet, IP, TCP, HTTP
Which PDU format is used when bits are received from the network medium by the NIC of a host?
Frame
Which statement is correct about network protocols?
They define how messages are exchanged between the source and the destination.
What 3 application layer protocols are part of the TCP/IP protocol suite?
DNS, FTP, DHCP
At which layer of the OSI model would a logical address be added during encapsulation?
Network layer
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
What is a characteristic of multicast messages?
They are sent to a select group of hosts.
