Quelles sont deux caractéristiques d'un câble à fibre optique ? (Choisissez deux propositions.) Il n’est pas affecté par les perturbations électromagnétiques ou radioélectriques. Chaque paire de fils est enveloppée dans…
Un administrateur réseau mesure le transfert de bits sur le réseau fédérateur d'une entreprise pour une application financière stratégique. Il remarque que le débit du réseau est inférieur à la…
A Layer 2 switch is used to switch incoming frames from a 1000BASE-T port to a port connected to a 100Base-T network. Which method of memory buffering would work best…
What is a primary role of the Physical layer in transmitting data on the network? create the signals that represent the bits in each frame on to the media provide…
When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address? DNS server address subnet…
Which two activities are normally controlled by the Northbridge part of the chipset? (Choose two.) communication between the CPU and the I/O ports access to the RAM communication between the…
Which of the following is not a valid command for variable declaration? export ENV_VAR=1 newvar -x ENV_VAR=1 typeset -x ENV_VAR=1 declare -x ENV_VAR=1 Explanation & Hint: The command "newvar -x…
A new environment variable can be exported and assigned a value with a single command. True or False? True False Explanation & Hint: True. In Unix-like shell environments, you can…
Which of the following is not a valid variable name? NEWVARIABLE VAR_1 _LPIC 2_VAR Explanation & Hint: The variable name "2_VAR" is not a valid variable name. In many programming…
Shell variables are case sensitive. True or False? True False Explanation & Hint: True. Shell variables are indeed case sensitive. This means that variables with different letter cases (uppercase and…