When open source software is used in SaaS, it is called ____________ SaaS.
- Free
- Closed
- Freemium
- Open
When open source software is used in SaaS, it is called ____________ SaaS.
Tuesday, March 20, 2018
What are the three switch port states of the rapid spanning tree protocol (RSTP)?
What are the three switch port states of the rapid spanning tree protocol (RSTP)?
- Blocking, Learning, Forwarding
- Disabled, Listening, Forwarding
- Discarding, Learning, Forwarding
- Disabled, Blocking, Forwarding
EXPLANATION
There are 3 port states in RSTP (802.1w) that correspond to the three possible operational states. The 802.1D disabled, blocking, and listening states are merged into a unique 802.1w discarding state. The end result is faster reconvergence time. So the three switch port states are:- Discarding - No user data is sent over the port
- Learning - The port is not forwarding frames yet, but is populating its MAC-address-table
- Forwarding - The port is fully operational
What cloud computing characteristic ensures services and data are always reachable?
What cloud computing characteristic ensures services and data are always reachable?
- Integrity
- Availability
- Scalability
- Confidentiality
EXPLANATION
Availability ensures that something is reachable at any time
SOURCE
https://quizlet.com/45222112/comptia-cloud-essentials-certification-practice-questions-flash-cards/Which of the following are built-in functions in SQL?
Which of the following are built-in functions in SQL?
- SUM, AVG, MIN, MAX, MULT
- SUM, AVG, MULT, DIV, MIN
- SUM, AVG, MIN, MAX, NAME
- COUNT, SUM, AVG, MAX, MIN
EXPLANATION
COUNT, SUM, AVG, MAX, and MIN are all built-in functions in SQL.What is a small program or function that automates a specific task called?
What is a small program or function that automates a specific task called?
- Macro
- Nano
- Micro
- Mongo
EXPLANATION
A macro is a small program, or script, that automates common tasks. These scripts are usually run within programs and can often be created by the user. For example, a user might record a macro for Microsoft Word that inserts his entire address when he presses a custom key combination.
