Question 1 A customer has called in complaining about not be

Question 1:

A customer has called in complaining about not being able to connect to network resources on their workstation. You ask for their workstation’s hostname and try to ping it. Your pings are unsuccessful. You instruct the customer on how to find their IP address and they report it as 169.254.36.237. What issue is affecting the customer at this time?A customer has called in complaining about not being able to connect to network resources on their workstation. You ask for their workstation’s hostname and try to ping it. Your pings are unsuccessful. You instruct the customer on how to find their IP address and they report it as 169.254.36.237. What issue is affecting the customer at this time?

1)They are not connected to the network.

2)They are connected to the network, but their workstation hasn’t picked up an IP address from the network’s DHCP server.

3)Their firewall is misconfigured to block DNS messages.

4)The NIC driver needs to be updated.

Question 2:

You are assisting an application developer with filling out a load balancing request. The developer wants all http requests to be forwarded to the default https port. How would you advise the developer to fill out the request?

1)The load balancer should listen on tcp port 443 and forward to tcp port 80

2)The load balancer should listen on tcp port 80 and forward to tcp port 445

3)The load balancer should listen on tcp port 80 and forward to tcp port 443

4)The load balancer should listen on tcp port 80 and forward to tcp port 80

Solution

Q1> option 3 is correct ie Their firewall is misconfigured to block DNS messages. Since the customer has an IP Address that means , he/she is connected to a network, NIC is working properly and doesnot require an IP address from DHCP. Since you were not able to get any response(unsuccessful pings ) from the hostname provided by the customer , hence the DNS(domain name system ) server is not able to find the IP Address correspoding to the hostname. This means that the DNS messages send by the DNS server is being dropped or blocked by the firewall of the customer host. Hence removing firewall restriction will resolve the issue

Q2> Option 3 is the answer i.e. The load balancer should listen on tcp port 80 and forward to tcp port 443. Since the default port for http is 80 hence it should listen to port 80 , and the default port for Https is 443 , so it should forward all request to port 443.