What are two potential network problems that can result from ARP operation? (Choose two.) Manually configuring static ARP associations could facilitate ARP poisoning or MAC address spoofing. On large networks…
What are three ways that media access control is used in networking? (Choose three.) Ethernet utilizes CSMA/CD. Media access control provides placement of data frames onto the media. Contention-based access…
Refer to the exhibit. An EtherChannel was configured between switches S1 and S2, but the interfaces do not form an EtherChannel. What is the problem? The interface port-channel number has…
What are two requirements to be able to configure an EtherChannel between two switches? (Choose two.) The interfaces that are involved need to be contiguous on the switch. All the…
Which protocol provides up to 16 instances of RSTP, combines many VLANs with the same physical and logical topology into a common RSTP instance, and provides support for PortFast, BPDU…
What is the function of STP in a scalable network? It decreases the size of the failure domain to contain the impact of failures. It protects the edge of the…
When the show spanning-tree vlan 33 command is issued on a switch, three ports are shown in the forwarding state. In which two port roles could these interfaces function while…
Match the STP protocol with the correct description. (Not all options are used.) Explanation & Hint: Rapid PVST+ (Per-VLAN Spanning Tree Plus): Rapid PVST+ is an extension of the original…
Examine the following code: let car = {make: "Citroen", model: "DS"}; for (let f in car) console.log(f); What will appear on the console as a result? "Citroen" "DS" "make: Citroen"…
Examine the following code: for (let a = 4; a < 4; a++) { console.log("test"); } How many times will "test" be displayed in the console as a result of…
Examine the following code: for (let a = 5; a > 1; a--) { console.log(a); } ; Which statement can replace the for from the example above? let a =…
We store an array of animal names in the animals variable (e.g. let animals = ["dog", "cat", "hamster", "rabbit"];). Which of the following statements will display exactly two names from the array? for (let i…
Analyze the following code: for (let x = 10; x > 1; x -= 2) console.log("hello"); How many times will "hello" be displayed in the console as a result of…
Analyze the following code: let a = 10; do { console.log(a--); } while (a > 3); Which statement can replace the do ... while from the example above? while (a > 4) …
If we want to display all the elements of the days array in reverse order (starting from the last element) then we can do this using the statement: for(let i =…
Which of the following loop instructions is intended only to loop through all the keys of the indicated object? for ... of if ... else for ... in do ...…
Which of the following is not a loop instruction in JavaScript? for ... in do ... while for ... of if ... else Explanation & Hint: The "if ... else"…
Which sequence of if ... else statements is incorrect? if ... else ... if ... else if ... if ... else if ... else if... if ... else ... else if ... Explanation…
Analyze the code below: if (counter === 10) { console.log("abc"); } How can we write the same condition using the switch statement? case(counter) { switch 10: console.log("abc") }; switch(counter)…
The switch statement: allows you to change the program mode to debug mode. is a conditional statement that allows different actions to be taken depending on the value stored in the indicated…