30 Questions
What is the main purpose of using dynamic ports during communication?
To identify the client application
Which protocol uses port number 22?
SSH
What is the primary function of the netstat command?
To verify connections
Which of the following protocols uses UDP and TCP?
DNS
What is the purpose of port number 67?
To serve as a DHCP server
Which of the following ports is used for secure web browsing?
Port 443
What is the function of the default gateway?
Specifies the delivery method of packets
In what scenario would a host use a default gateway?
Sending data to a device on a different network
What is the purpose of configuring a default gateway on a switch?
To provide remote management capability from another network
Which statement best describes the role of the transport layer?
Facilitates communication between applications on different hosts
What does the transport layer act as a link between?
Application layer and lower network layers
Why doesn't IP specify how packet delivery occurs?
Delivery mechanisms vary based on network protocols
What are the three common message types in the HTTP protocol?
GET, POST, PUT
Which action does the GET message type perform in the HTTP protocol?
Request for data
When should the HTTPS protocol be used instead of HTTP for communications?
For secure internet communications
Which protocol is used to send mail messages from an email client to a mail server?
Simple Mail Transfer Protocol (SMTP)
In the context of email protocols, what does SMTP stand for?
Simple Mail Transport Protocol
Which type of protocol is SMTP in the context of email communication?
Protocol for sending mail
What is one of the most effective ways of protecting against data loss?
Regular backups
How often should full backups be performed according to the text?
Monthly or weekly
Where are data backups usually stored to protect against potential data loss?
Offsite
How should backups be transported to an offsite storage location?
On a daily, weekly, or monthly rotation
What is required to protect backups according to the text?
Strong passwords
Which of the following is an important guideline for creating passwords to protect network devices?
Using at least eight characters, preferably 10 or more characters
What is a key feature of TCP in terms of data transmission?
Establishes a permanent connection between devices before forwarding any traffic
Why is reliable delivery a key feature of TCP?
To ensure each segment sent arrives at the destination
What does TCP do to handle limited resources on network hosts?
Requests the sending application reduce the data flow rate
Why is same-order delivery important in TCP?
To prevent data from arriving out of order
What is a key difference between TCP and UDP?
TCP reorders data segments, while UDP does not
In TCP, what occurs if a segment is corrupted or lost during transmission?
The segment is retransmitted to ensure reliable delivery
This quiz covers configuring the default gateway on a host in a Cisco network. Understand how the default gateway is used when sending packets to devices on other networks, and the importance of having the host and router interface in the same network.
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