Answer:
The correct answer is C. Sometimes.
Explanation:
A database index is a structure that aims to speed up selections and selective operations on a database. An index reduces the number of comparisons required to find one or more database records. This avoids having to perform a so-called full table scan, whereby all records in the table have to be run through sequentially.
Therefore, if the search does not focus correctly on the necessary data, this search will not always determine the index of the goal. Therefore, the user must correctly handle the search keywords to collaborate with the system.
Answer:
Can you give me the options
idNumber = "123456"
idNo = input("Enter the unique ID number: ")
while idNumber != idNo:
print("This is not your ID number.")
idNo = input("Enter the unique ID number: ")
print("This is your ID number: ", idNo)
Output:
sh-4.3$ python3 main.py
Enter the unique ID number: 2345
This is not your ID number.
Enter the unique ID number: 4563
This is not your ID number.
Enter the unique ID number: 12345
This is not your ID number.
Enter the unique ID number: 123456
This is your ID number: 123456
Answer:
Is B I think So don’t be in a comments trying to come for me
Step by step explanation:
Answer:
ICMP echo requests.
Explanation:
A Domain Name System (DNS) can be defined as a naming database in which internet domain names (website URLs) are stored and translated into their respective internet protocol (IP) address. This simply means that, DNS is used to connect uniform resource locator (URL) or web address with their internet protocol (IP) address.
When troubleshooting Domain Name System (DNS) problems, one helpful feature the public servers usually support is an ICMP echo requests.
ICMP is an acronym for Internet Control Message Protocol and it is a standard protocol for communicating network errors in the form of messages such as Time exceeded and Destination unreachable.
In Computer Networking, an echo reply and echo request are implemented with a command utility referred to as ping. When a user sends an echo request message with the ping program, a successful attempt will return an echo reply message.
Hence, when troubleshooting Domain Name System (DNS) problems, a user should ping a public server such as a Google DNS server with the IP address (8.8.8.8 or 8.8.4.4), Cloudfare with 1.1.1.1 or the common 4.2.2.2 DNS server. If successful, it means the name-server was resolved properly into an IP address and therefore, there's an active connection on the network.