Which of the following is NOT a type of Android passcode lock that your users can set?

Which of the following is NOT a type of Android passcode lock that your users can set?

• Drawn pattern
• CAPTCHA
• Password
• Numeric PIN 

EXPLANATION

 CAPTCHA: Telling Humans and Computers Apart Automatically

A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text as the one shown below, but current computer programs can't:

The term CAPTCHA (for Completely Automated Public Turing Test To Tell Computers and Humans Apart) was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford of Carnegie Mellon University.

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Which of the following allows your phone to act as a mobile hotspot?

Which of the following allows your phone to act as a mobile hotspot?

• Wi-Fi tethering
• IMAP
• Internet pass-through
• USB switching 

EXPLANATION

Tethering, or phone-as-modem (PAM), is the sharing of a mobile device's Internet connection with other connected computers. Connection of a mobile device with other devices can be done over wireless LAN (Wi-Fi), over Bluetooth or by physical connection using a cable, for example through USB.
If tethering is done over WLAN, the feature may be branded as a personal or mobile hotspot, which allows the device to serve as a portable router. Mobile hotspots may be protected by a PIN or password.^[1] The Internet-connected mobile device can act as a portable wireless access point and router for devices connected to it.

 

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What is the default TCP port number for SMTP?

What is the default TCP port number for SMTP?

• 110
• 143
• 995
• 25

EXPLANATION

 Simple Mail Transfer Protocol is an Internet standard for electronic mail transmission. First defined by in 1982, it was last updated in 2008 with Extended SMTP additions by, which is the protocol in widespread use today.

 The Simple Mail Transfer Protocol (SMTP) is a communication protocol for electronic mail transmission. As an Internet standard, SMTP was first defined in 1982 by RFC 821, and updated in 2008 by RFC 5321 to Extended SMTP additions, which is the protocol variety in widespread use today. Mail servers and other message transfer agents use SMTP to send and receive mail messages. Proprietary systems such as Microsoft Exchange and IBM Notes and webmail systems such as Outlook.com, Gmail and Yahoo! Mail may use non-standard protocols internally, but all use SMTP when sending to or receiving email from outside their own systems. SMTP servers commonly use the Transmission Control Protocol on port number 25.
User-level email clients typically use SMTP only for sending messages to a mail server for relaying, typically submit outgoing email to the mail server on port 587 or 465 as per RFC 8314. For retrieving messages, IMAP and POP3 are standard, but proprietary servers also often implement proprietary protocols, e.g., Exchange ActiveSync.

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You want to add a security layer that maintains strict control over the apps your users can use. Which of the following best fulfills this requirement?

You want to add a security layer that maintains strict control over the apps your users can use. Which of the following best fulfills this requirement?

• Lockout
• Encryption
• White listing
• Black listing 

EXPLANATION

 Whitelisting is the practice of identifying entities that are provided a particular privilege, service, mobility, access or recognition. Entities on the list will be accepted, approved and/or recognized. Whitelisting is the reverse of blacklisting, the practice of identifying entities that are denied, unrecognised, or ostracised.

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Which of the following is included in a BYOD (Bring Your Own Device) policy document?

Which of the following is included in a BYOD (Bring Your Own Device) policy document?

• Data ownership
• Transitive trust
• Credential management
• Key management

EXPLANATION

 An identity platform system configured to authenticate a company-assigned device for accessing a first network using a first unique pre-shared key associated with the company-assigned device. A personal BYOD credential management system configured to authenticate a personal BYOD for accessing a second network using a second unique pre-shared key associated with the personal BYOD. A network administrator interface configured to provide access to the identity platform for a network administrator. A personal BYOD credential management system API included as part of the identity platform system and configured to provide the identity platform system access to the personal BYOD credential management system as if the personal BYOD credential management system is embedded in the identity platform system.

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In which network topology does every node connect independently to one central unit?

In which network topology does every node connect independently to one central unit?

• Bus
• Mesh
• Star
• Ring 

EXPLANATION

Star network a data or communication network in which all nodes are independently connected to one central unit

What is Star Topology?

A star topology is a network topology in which all the network nodes are individually connected to a central switch, hub or computer which acts as a central point of communication to pass on the messages.
In a star topology, there are different nodes called hosts and there is a central point of communication called server or hub. Each host or computer is individually connected to the central hub. We can also term the server as the root and peripheral hosts as the leaves.
In this topology, if nodes want to communicate with a central node, then they pass on the message to the central server and the central server forwards their messages to the different nodes. Thus, they form a topology like the representation of a star.

How does communication happen in a Star topology?

Let’s say all the computers of a floor are connected to a common hub or switch. The switch maintains a CAM table in this case. The CAM table is Content Addressable Memory where hardware addresses of the all the connected devices are stored inside a memory in the switch.
For example, if computer A wants to send a data packet to computer B then computer A will forward the message to the switch. The switch will check the address of the destination computer and forward the message to the same.
In the case of a hub, a hub has no memory of its own. So when computer A sends a message to computer B, then hub announces “Hello all the ports connected to me, I have got a packet for this address. Who of you has this address?” This procedure is called ARP (Address Resolution Protocol) and using this network protocol the hub is able to find the address of the intended machine and hence, it transfers the packet to the destination machine.

Advantages of Star Topology:

• Less damage in case of a single computer failure as it does not affect the entire network

Disadvantages of Star topology:

• More cables are required to be connected because each computer individually connects to the central server
• Single point of failure in case the server get down.

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Which PowerShell command should you use to get help with other commands?

Which PowerShell command should you use to get help with other commands?

• Get-Help
• /?
• -help
• -? 

EXPLANATION

The Get-Help cmdlet displays information about PowerShell concepts and commands, including cmdlets, functions, CIM commands, workflows, providers, aliases and scripts. To get help for a PowerShell command, type Get-Help followed by the command name, such as: Get-Help Get-Process.

Displays information about PowerShell commands and concepts.

Syntax

PowerShell

Get-Help
   [[-Name] <String>]
   [-Path <String>]
   [-Category <String[]>]
   [-Component <String[]>]
   [-Functionality <String[]>]
   [-Role <String[]>]
   [-Full]
   [<CommonParameters>]

 

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