Correct Answer:

DVD image. This is a file that contains an image of the contents of a CD or DVD optical disk. Larger software applications are made available for download using the format that might also be compressed.

Incorrect Answers:

Compressed archive. Depending on the tool used, this could have a .zip or .tar file extension among many more. An ISO file can be compressed to a ZIP to reduce the size, which means it downloads quicker.

Application installer. Not all ISOs are used to install software.

PowerShell script. PowerShell scripts normally have a .ps1 file extension.

Correct Answer:

Roman did not interact with the captive portal. Captive portals are used at many Wi-Fi hotspots. They are a web page that the user must interact with, such as agreeing to usage terms, before being granted Internet access.

Incorrect Answers:

Roman’s web browser is blocking all scripts. This is unlikely since he had no previous problems connecting to the same web sites.

Proxy settings are incorrect. This is not as likely as forgetting to interact with the captive portal. Proxy settings funnel traffic through an intermediary server that has Internet connectivity; this is also used to examine and control outbound Internet traffic.

DNS is not working. This is unlikely; it’s working for everybody else at the café.

Correct Answer:

The delete method is being run against the object. Methods run actions against an item, such as deleting an object.

Incorrect Answers:

The delete property is being run against the object. Delete would be a method (action) and not a property (descriptive characteristic).

Object1.Delete is the name of an array variable, Object1.Delete is the name of a string variable. The variable name is Object1; Delete is the reference to invoking a method.

Correct Answer:

Laser. Laser printers use toner, a relatively inexpensive iron-based powder, to print.

Incorrect Answers:

Impact. Although inexpensive to operate, impact (or dot-matrix) printers use an inked ribbon for a print source.

Inkjet. Inkjet printers cost more than any other printer type to operate.

Thermal. Thermal printers require special paper and can cost a bit to operate.

Correct Answer:

$Cities[2].Name. The specific programming language syntax will vary from one language to another, but this syntax is the best answer; this syntax works in Microsoft PowerShell.

Incorrect Answers:

Cities2.Name, Cities3.Name. These won’t work because it looks like the variable names, respectively, are Cities2 and Cities3 when the variable is named just Cities.

$Cities[4].Name references the fourth item in the array, if starting at 1, or the first, if starting at 0.

Correct Answer:

Height of the keyboard and mouse. Placement of hands makes a big difference with long-term use of a workstation.

Incorrect Answers:

Type of mouse pad. Today’s optical mice handle all sorts of surfaces.

Ventilation. Although important, ventilation isn’t a big issue with ergonomics.

Color of the monitor. This matters to some people but doesn’t have much to do with ergonomics.

Correct Answer:

Bluetooth. Of the options here, only Bluetooth is available on all smartphones.

Incorrect Answers:

Infrared. Some smartphones offer infrared, but not all.

Micro SD card. This works for Android but not iOS.

USB connection. Few smartphones have a standard USB connection.

Correct Answer:

Loop through the array. Use a looping construct such as for, foreach, while, and so on, to go through each array element for processing.

Incorrect Answers:

Export the array to a file, Use an if statement, Create an object. None of these is as efficient as looping through the already existing array variable.

Correct Answer:

Mike’s co-worker could be shoulder surfing to discover Mike’s credentials.

Incorrect Answers:

Social engineering uses people to gain access to company resources.

Phishing attacks use bogus claims to get people to give out their credentials.

Tailgating means to slip into a secure place by following an authorized user closely.

Correct Answers:

Cloud account. In most cases, you’ll need one of these before you can access software updates.

Internet connection. You can’t get to the public cloud without this.

Incorrect Answers:

Cloud malware scanner. A malware scanner is always recommended but not required.

Cloud SSO. Single sign-on means sign in once and not multiple times as you access multiple cloud services; it’s not required.