Answer:
You need to click on the tab from the ribbon and enter the Page Setup gallery. And then you need to select the Titles section. And finally, in the Print Titles section, you need to select the rows that you want to repeat on the top in each page of the worksheet or the column you want to repeat on the extreme left of the worksheet and each of its pages. This is done when the worksheet has multiple pages. And you can do the same on multiple numbers of worksheets, and the entire workbook as well. Some options will not be available in the Page setup section if you select multiple worksheets.
Explanation:
Please check the answer section.
Answer:
1. Firewall.
2. Router.
3. Proxy.
4. SMTP, 25.
Explanation:
1. A firewall is a network security protocol that monitors and controls inbound and outbound traffic based on set aside security rules.
Generally, a firewall is used to control access to a computer or network, as it creates a barrier between a computer or a network and the internet in order to protect against unauthorized access. It is a security system pre-installed on most computers to essentially inspect data being transmitted to or from a computer.
Furthermore, firewalls are typically bidirectional, it checks all sent and received data and only allow authorized traffic through.
2. A router can be defined as a network device that is designed typically for forwarding data packets between two or more networks based on a well-defined routing protocol.
A routing protocol can be defined as a set of defined rules or algorithms used by routers to determine the communication paths unto which data should be exchanged between the source router and destination or host device.
3. A proxy can be defined as a computer network service designed to avail end users (clients) the ability to connect indirectly to other network services. For example, a reverse proxy is a type of server that is placed right in front of other servers such as a web server and forwards or routes the user's (client) requests to those servers sitting behind it. When properly configured, reverse proxy helps to ensure security, reliability and good performance of a network.
4. A spam filter can be defined as a software program designed to process all incoming electronic messages (e-mails) and prevents any unsolicited or unwanted mail (spam) from entering the inbox of a client.
Generally, a spam filter uses SMTP with port number 25 to carry out its services.
SMTP is an acronym for Simple Mail Transfer Protocol and it uses the standard port number of 25 to provide clients with requested services.
Answer:
5 MB.
Explanation:
1 foot = 12 inches
2400/9=266.66 feet per track
1 track excluding, remaining 8 track =2400 - 266.66 = 2133.33 feet
so, space available to store data = 2133.33 feet
now, 2133.33 feet = 25600 inches
total data that can be stored = 25600 * 1600 = 40960000 bits
= 46080000/8 = 5120000 Bytes
= 5120000/1000000 = 5.12 MB = 5 MB (approx.)
Advertising is a paid promotion that uses strategic planning to target a certain audience. The seven functions of marketing is promotion, selling, product management, marketing information management, pricing, financing, and distribution. Usually you see common advertising such as digital ads, billboards, newspapers, flyers, and more. Advertising can spread awareness, popularize a brand, increase customer demand, and company profits. Advertising is necessary for most- if not all- companies including media outlets, the television industry, search engine companies, and social media websites.
Answer: Virus Hoax
Explanation:
A computer virus hoax is a message that warns someone of a false virus threat. It is a a chain email that encourages who ever has received the message to pass it to other people as a form of warning.
