PHP supports eight primitive data types.
- TRUE
- FALSE
This statement is true. PHP supports eight primitive data types: integer, float, string, boolean, null, array, object, and resource. These data types are the building blocks for storing and manipulating data in PHP. Each data type has its own characteristics and uses. Learn more: https://www.php.net/manual/en/language.types.intro.php
How do you use the $_POST superglobal in PHP?
- Access the data using the $_POST['key'] syntax.
- Access the data using the $_POST->$key syntax.
- Access the data using the $_POST[key] syntax.
- Access the data using the $_POST->key syntax.
To use the $_POST superglobal in PHP, you can access the submitted form data by using the $_POST['key'] syntax. The 'key' corresponds to the name attribute of the form input. For example, to access the value of an input field with name="username", you would use $_POST['username']. This allows you to retrieve and process the data submitted via an HTML form using the POST method. Learn more: https://www.php.net/manual/en/reserved.variables.post.php
Which type of firewall examines network traffic based solely on IP addresses and ports?
- Stateful firewall
- Proxy firewall
- Packet-filtering firewall
- Application-layer firewall
A packet-filtering firewall examines network traffic based solely on IP addresses and ports.
The ________ record in DNS is used to redirect one domain to another domain.
- CNAME
- MX
- A
- PTR
The CNAME (Canonical Name) record in DNS is used to redirect one domain to another domain. It is commonly used for creating aliases or redirects in the DNS system.
_________ is a common SDN framework that allows direct programmable control of the network.
- OpenFlow
- SNMP
- BGP
- OSPF
OpenFlow is a common SDN framework that allows direct programmable control of the network.
What is a fundamental characteristic of PPP that distinguishes it from other data link layer protocols?
- Connection-oriented
- Connectionless
- Both
- Neither
A fundamental characteristic of PPP is that it is connection-oriented, distinguishing it from other data link layer protocols.
The technique of _________ can help in optimizing the performance of a network by reducing the number of individual routes advertised.
- BGP
- OSPF
- Route Redistribution
- Route Summarization
The technique of route summarization can help optimize network performance by reducing the number of individual routes advertised, leading to more efficient routing tables.
In a network setup, which device is used to filter and forward packets between LAN segments based on MAC addresses?
- Bridge
- Hub
- Router
- Switch
A bridge is used to filter and forward packets between LAN segments based on MAC addresses in a network setup.
What is the difference between a site-to-site VPN and a remote access VPN?
- Site-to-Site VPNs connect entire networks, while Remote Access VPNs connect individual users to a network.
- Site-to-Site VPNs use SSL/TLS encryption, while Remote Access VPNs use IPSec.
- Site-to-Site VPNs are only suitable for small organizations, while Remote Access VPNs are suitable for large enterprises.
- Site-to-Site VPNs are always faster than Remote Access VPNs.
A site-to-site VPN connects entire networks, allowing multiple users to access the network, while a remote access VPN connects individual users to a network.
Which cloud service model provides users with a platform to develop, run, and manage applications without the complexity of building and maintaining the infrastructure?
- Infrastructure as a Service (IaaS)
- Platform as a Service (PaaS)
- Software as a Service (SaaS)
- Function as a Service (FaaS)
Platform as a Service (PaaS) provides users with a platform to develop, run, and manage applications without the complexity of building and maintaining the infrastructure.