Q1 Q1-1
Q1-1-1
Suppose ping from PC1 to PC2
Q1-2-1
List three kinds of switching methods and their features
Q1-2-2
How FCS works to check the frame
Q1-2-3
How PC resolves the mac address of the destination IP address when the destination IP is on the local network. Would the process change if the destination is on a remote network?
Hop
Source MAC
Destination MAC
Source IP
Destination IP
PC1-R1
R1-R2
R2-R3
R3-PC-2
Q2
Explain in detail what processes the PC undertakes to send email with large attachment/browse web page/watch video and what happened on each layer
Q3 Q3-1
Q3-1-1
PC1 ping 127.0.0.1. What forwarding decision is made by PC1, and where is the packet sent
Q3-1-2
PC1 ping 172.16.10.20. What forwarding decision is made by PC1, and where is the packet sent
Q3-1-3
PC1 ping 100.1.1.10. What forwarding decision is made by PC1, and where is the packet sent
Q3-1-4
Assume S1 has complete MAC table. Which pings are received by S1, how S1 forwards these pings.
Q3-2
Q3-2-1
RIPv2 is enabled for the network. How data transferred from PC1 to PC2? Does bandwidth affect the forwarding decision?
Q3-2-2
How many network entries would be in the routing table of R1, R4, and R5
Q4
Q4-1
Draw the logical topology
Q4-2
Explain what are parent route, child route, and ultimate route
Q4-3
List the directly connected subnets on R1 including their network address, netmask, number of host addresses, broadcast address
Q5
Q5-1
How many VLANs and what are their names
Q5-2
From A-G, which links are access links and trunk links. Explain why
Q5-3
How would HR attached to S1 communicate to HR attached to S2 How would IT attached to S3 communicate with IT attached to S1 How would HR and IT attached to S1 communicate with each other How would HR attached to S1 communicate with IT attached to S3
Q5-4
What are the purposes of data VLAN, management VLAN and native VLAN
Q6 Q6-1
Q6-1-1
What happened to packets sent by hosts on LAN 2001:ea5e:acad:2::/64 to ISP? What problem have been created?
Q6-1-2
How to correct the problem
Q6-2
Q6-2-1
What static or default static routing would need to be added. How to configure the routing so that R1-ISP is the primary link
Q7
Q7-1
Give two examples of places where static NAT is warranted. When considering using static NAT?
Q7-2
What¡¯s the different between dynamic NAT and dynamic NAT with overloading(PAT)
Q7-3
What is the purpose of NAT in IPv6
Q8
Q8-1
What type of interface is network 10.22.1.0/24 network connected? What happened to packet sent to such an interface
Q8-2
What are the physical interfaces the router attached to? What¡¯s their address? What¡¯s the address of s1/0?
Q8-3
Explain what¡¯s the purpose of the characters at the left of the routing table. What routing protocols are used?
Q8-4
When routing a packet, how is the entry used? 10.0.0.0/8 is variably subnetted, 15 subnets, 4 masks
Q8-5
How does the router determine the exit interface for packets destined for 200.1.1.0/24
Q9 Q9-1
On router R1
ip route 0.0.0.0 0.0.0.0 172.16.10.1
On router Border
ip route 0.0.0.0 0.0.0.0 s1/0 ip route 0.0.0.0 0.0.0.0 s1/1
Q9-1-1
What is wrong with the configuration
Q9-1-2
How to correct the problem?
Q9-2
Q9-2-1
How to configure Border to make sure ISP1 link is the primary link?
Q9-2-2
What ensures ISP2 link goes up immediately after ISP1 link goes down?
Q9-3
Q9-3-1
Suppose RIPv2 is enabled in the internal network, how should Border_1 and Border_2 to be configured so that
1. Boder_1-ISP1istheprimarylink,Border_2-ISP2isthesecondarylink 2. Whenbothlinksup,alltrafficgoesthroughprimarylink
3. Whenprimarylinkdown,alltrafficgoesthroughsecondarylink
Q10
Suppose only static routing is used across the network
Q10-1
On which routers would standard static routing be configured?
Q10-2
On which routers would default static routing be configured?
Q10-3
Write down static routes configured on R3
Q11
Q11-1
Why are there three different RA message types?
Q11-2
If using a stateless DHCP RA message, clearly describe how PC1 obtains its IPv6 address, prefix and default gateway
Q11-3
When would a PC send an RS message?
Q12 Q12-1
Why DHCPv4 server needs to configure excluded addresses?
Q12-2
Explain why DHCP uses UDP as the transport layer protocol rather than the secure and reliable TCP.
Q12-3
Describe the process client obtain its addressing information via DHCPv4
Q12-4
Explain when and why DHCP messages are broadcast and unicast