Which of the following does ROBOCOPY stand for?
- Recursive File Copy
- Robust File Copy
- Read Only Block Option Copy
- Robot Copy
Which of the following does ROBOCOPY stand for?
Thursday, March 22, 2018
Tuesday, March 20, 2018
Which of these is NOT a PHP class?
Which of these is NOT a PHP class?
- PDO
- XMLReader
- ErrorLog
- DateTime
EXPLANATION
"ErrorLog" is the correct answer. PHP has a function called "error_log", but it returns true/false and there is no object-oriented version like there is with some of the other classes.PDO is a PHP extension for working with databases. XMLReader and DateTime are also classes, though they both have procedural versions too.
Which of these is NOT a utility that lets you create a bootable live USB drive for Linux?
Which of these is NOT a utility that lets you create a bootable live USB drive for Linux?
- LiveUSB Install
- UNetbootin
- GotLive
- LiLi
EXPLANATION
LinuxLive USB Creator (also known as Lili) is a free and open-source software for Windows that can be used to install various Linux compilations, versions and distributions to a USB Flash Drive. The end result is a Bootable Live USB (in some cases with Persistence as well). UNetbootin allows you to create bootable Live USB drives for Ubuntu and other Linux distributions without burning a CD.Cloud solutions that can tolerate failures yet still provide service are referred to as what?
Cloud solutions that can tolerate failures yet still provide service are referred to as what?
- Highly available
- Highly portable
- PaaS
- IaaS
EXPLANATION
High availability ensures that cloud solutions are always accessible. This means eliminating single points of failure, such as storing data on a single hard disk or single network connections.What MySQL feature allows for queries to be run periodically in the background, independent of a front-end program?
What MySQL feature allows for queries to be run periodically in the background, independent of a front-end program?
- MySQL Automatic Events
- MySQL Task Manager
- MySQL Event Scheduler
- MySQL Scheduled Tasks
EXPLANATION
The MySQL Event Scheduler allows for queries to be run in the background at scheduled times, either as a one-off or recurring event.SOURCE
https://dev.mysql.com/doc/refman/5.7/en/events-overview.htmlOn a Cisco Catalyst switch, what are the Layer 3 interfaces called that are used to accomplish inter-VLAN routing?
On a Cisco Catalyst switch, what are the Layer 3 interfaces called that are used to accomplish inter-VLAN routing?
- SVI
- SIP
- Trunk interfaces
- RIP
EXPLANATION
VLANs divide broadcast domains in a LAN environment. Whenever hosts in one VLAN need to communicate with hosts in another VLAN, the traffic must be routed between them. This is known as inter-VLAN routing. On Catalyst switches it is accomplished by creating Layer 3 interfaces known as Switch Virtual Interfaces (SVI).
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By default, which of the following is NOT a legitimate Linux run level?
By default, which of the following is NOT a legitimate Linux run level?
- 4: Normal mode
- 6: Reboot system
- 1: Single-user mode
- 3: Multi-user mode with networking
EXPLANATION
A Linux run level defines the state of the system after boot. Conventionally, seven run levels exist, numbered from zero to six. They include:0: Halt system
1: Single-user mode
2: Basic multi-user mode without NFS
3: Multi-user mode with networking
4: Unused
5: Multi-user mode with GUI
6: Reboot system
