A command that should be used to remove these two print jobs from the print queue is cancel Printer1-17 Printer1-21.
<h3>What is printing?</h3>
Printing can be defined as a process that typically involves sending print jobs from a computer system to a printer, especially through the print queue.
In Computer technology, "cancel Printer1-17 Printer1-21" is a command that should be used to remove the two (2) print jobs from the print queue of Printer1 which is yet to start printing.
Read more on printer here: brainly.com/question/17100575
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<span>Which of the following is important to consider before believing health or fitness information you find online?
The right answer is C) </span>The qualifications of the author.
We should not believe in information about health and fitness if the author isn't qualified to give it.
Complete Question:
Proxy servers and ACLs on network devices are examples of non-security devices with security features, while firewalls and IDS/IPS systems are the network's specialized security devices.
Group of answer choices:
A. True.
B. False.
Answer:
A. True.
Explanation:
A proxy server is an example of non-security devices with security features because it acts as a hub or gateway between a user and the internet. Therefore, when a user request for resources through a website, the proxy server acts as an intermediary between them and the web server providing such resources.
ACL is an acronym for access control list and it comprises of rules that grant or deny access to resources on a network.
A firewall is a network security system which prevents unauthorized access on a private network by monitoring, controlling and filtering inbound and outbound network traffic (packets) based on a set of security rules.
IDS and IPS are acronym for intrusion detection system and intrusion prevention system respectively. IDS is a security system which monitors the network traffic and notifies the engineer when there's a malicious activity. IPS is a security system which monitors the network traffic and blocks malicious activity as well as keeping logs.
<em>Hence, Proxy servers and ACLs on network devices are examples of non-security devices with security features, while firewalls and IDS/IPS systems are the network's specialized security devices. </em>
<span>You can view documents across all print queues and print devices.
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For the view of Exercise 4.18, explain why the database system would not allow a tuple to be inserted into the database through this view.
For reference
For the database of Figure 4.12, write a query to find the ID of each employee with no manager. Note that an employee may simply have no manager listed or may have a null manager. Write your query using an outer join and then write it again using no outer join at all.
OUTER JOIN
select e.ID from employee e left outer join manages m on e.ID = m.ID
where m.manager_id is null;
NO OUTER
select e.ID from employee e where e.ID not in (select m.ID from manages m) or e.ID in (select m.ID from manages m where m.manager_id is null);
