HTC Global Services Senior Engineer Interview Questions and Answers

var, let, const are used to declare variables in JavaScript. 'this' keyword refers to the current object.

• var is function-scoped, let is block-scoped, const is block-scoped and cannot be reassigned

• 'this' keyword refers to the current object in which it is used

• Example: var x = 10; let y = 20; const z = 30; this.name = 'John';

Juniper and Cisco use different command-line interfaces for network configuration and management.

• Cisco uses 'enable' to enter privileged mode; Juniper uses 'cli'.

• To view interfaces, Cisco uses 'show ip interface brief'; Juniper uses 'show interfaces terse'.

• For configuration, Cisco uses 'configure terminal'; Juniper uses 'edit'.

• To save configuration, Cisco uses 'write memory'; Juniper uses 'commit'.

• Cisco commands often ...read more

OSPF has several states that define the relationship between routers in a network, facilitating efficient routing.

• 1. Down: Initial state where no hello packets have been received.

• 2. Init: A router has received a hello packet but hasn't established a neighbor relationship.

• 3. Two-Way: Routers have exchanged hello packets and can see each other as neighbors.

• 4. ExStart: Routers negotiate the master/slave relationship for d...read more