Take this Exam: T Level Digital: Environments and Infrastructure | Zestly

Question 1

Knutsford Media uploads large video files on a connection with high bandwidth but also high latency, and finds that uploads complete quickly while its video calls are poor. What explains this?

Accepted Answer

Bandwidth determines how much data can move at once, while latency is the delay before it arrives, and a video call depends on the delay rather than on the volume

Answer

Video calls always need more bandwidth than file uploads

Answer

Latency only affects downloads, not uploads

Answer

The connection is faulty and both problems have the same cause

Question 2

Chatburn Insurance keeps a second set of servers in a different building, kept up to date and ready to take over. What does this arrangement provide?

Accepted Answer

Continuity if the first site becomes unavailable, because the service can be run from the second

Answer

Protection against a member of staff deleting a file by mistake

Answer

A reduction in the cost of running the service

Answer

Protection against an attacker stealing customer data

Question 3

Formby Dental copies its records every night to a second folder on the same server, keeping the last thirty nightly copies. What risk does this arrangement not cover?

Accepted Answer

Anything that takes the whole server out, since both the records and every copy are on it

Answer

A single file being overwritten by accident yesterday

Answer

A member of staff needing last week's version of a document

Answer

A record being edited incorrectly and needing to be restored

Question 4

Pilling Tickets expects its user numbers to grow steadily over two years. Which consideration matters most when choosing where to host?

Answer

Whether the system can be switched off overnight

Answer

Whether the provider's logo can be removed from the login page

Answer

Whether capacity can be added in steps as demand grows, without rebuilding the system

Answer

Whether the servers are the newest model available

Question 5

Warton Foods rents virtual machines and installs its own software on them. Who is responsible for keeping the operating system patched?

Answer

The firm's internet service provider

Answer

The firm itself, because it chose to manage everything above the virtual hardware

Answer

The cloud provider, because it owns the physical machines

Answer

Nobody, because virtual machines do not need patching