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WorksheetsIntro to networks 8.3, 8.4, 8.5
Total questions: 34
Worksheet time: 17mins
Name
Class
Date
1.
Which three options are major issues associated with IPv4? (Choose three.)
a)
IP address depletion
b)
increased network complexity and internet routing table expansion
c)
always on connections
d)
lack of end to end connectivity
e)
too many IPv4 addresses available
2.
Which two options are improvements provided by IPv6 as compared to IPv4? (Choose two.)
a)
header supports additional fields for complex packets
b)
increased the ip address space
c)
supports class based networks
d)
uses a simple header to provide improved packet handling
3.
Which is true of the IPv6 packet header?
a)
the hop limit field replaces the ipv4 time to live field
b)
the source and destination ipv6 addresses change while traveling from source to destination
c)
the versions field identifies the next header
4.
Which technology in IPv4 networks provides a way for multiple devices to share a single public IPv4 address?
a)
a) Network Address Translation (NAT)
b)
b) End-to-end connectivity
c)
c) IPv6 protocol
5.
What is one of the challenges caused by the use of NAT in IPv4 networks?
a)
a) Lack of end-to-end connectivity
b)
b) Increased network complexity
c)
c) IPv4 address depletion
6.
What is one of the improvements provided by IPv6 compared to IPv4?
a)
a) Increased address space
b)
b) Improved packet handling
c)
c) Need for NAT
7.
What is one advantage of IPv6 that eliminates the need for NAT?
a)
a) Increased address space
b)
b) Improved packet handling
c)
c) Large number of public IPv6 addresses
8.
What is one major design improvement of IPv6 over IPv4?
a)
a) Increased address space
b)
b) Simplified header
c)
c) Support for NAT
9.
What happens to some of the IPv4 fields in the IPv6 packet header?
a)
a) They remain the same
b)
b) They change names and positions
c)
c) They are no longer required
10.
What is the purpose of the traffic class field in IPv6?
a)
a) It identifies the source and destination IP addresses.
b)
b) It specifies the version of the IPv6 protocol.
c)
c) It indicates the priority or quality of service (QoS) for the packet.
d)
d) It defines the size of the IPv6 header.
11.
What does the payload length field in IPv6 indicate?
a)
a) It specifies the version of the IPv6 protocol.
b)
b) It identifies the source and destination IP addresses.
c)
c) It indicates the length of the data portion or payload of the IPv6 packet.
d)
d) It informs devices to handle packets with identical payload lengths in a consistent manner.
12.
What does the Next Header field in IPv6 indicate?
a)
a) It specifies the version of the IPv6 protocol.
b)
b) It identifies the source and destination IP addresses.
c)
c) It indicates the length of the data portion or payload of the IPv6 packet.
d)
d) It indicates the data payload type that the packet is carrying.
13.
What happens when the hop limit field in an IPv6 packet reaches 0?
a)
a) The packet is discarded, and an ICMPv6 time exceed message is sent to the receiving host.
b)
b) The packet is forwarded to the next router in the path.
c)
c) The packet is rerouted to an alternate path.
d)
d) The packet is modified with a new hop limit value.
14.
Why does IPv6 not include an IPv6 header checksum like IPv4?
a)
a) The IPv6 header checksum is calculated at the transport layer.
b)
b) The IPv6 header does not require error checking.
c)
c) The IPv6 checksum is performed at the data link layer.
d)
d) The IPv6 header checksum is unnecessary due to checksum calculations at lower and upper layers.
15.
What does the source IPv6 address field in an IPv6 packet identify?
a)
a) The IPv6 address of the receiving host
b)
b) The subnet mask of the sending host
c)
c) The IPv6 address of the sending host
d)
d) The MAC address of the sending host
16.
Which statement about host forwarding decisions is true?
a)
a host cannot ping itself
b)
a remote destination host is on the same local network as the sending host
c)
local hosts can reach each other without the need of a router
d)
routing is enabled on switches to discover the best path to a destination
17.
Which default gateway statement is true?
a)
a default gateway is required to send packets to other hosts on the local network
b)
the default gateway address is the ip address of a switch on a remote network
c)
the default gateway address is the ip address of the router on the local network
d)
traffic can only be forwarded outside the local network if there is no default gateway
18.
Which two commands could be entered on a Windows host to view its IPv4 and IPv6 routing table? (Choose two.)
a)
netroute -l
b)
netstat -r
c)
print route
d)
route print
e)
print net
19.
When a source host sends a packet to a destination host on a different network, it is considered:
a)
a) Local host
b)
b) Remote host
c)
c) Loopback host
d)
d) Self host
20.
How does a source device determine whether a destination IPv4 address is on the same network?
a)
a) By consulting the local router
b)
b) By checking the destination subnet mask
c)
c) By using the ARP table
d)
d) By sending an ICMP echo request
21.
What is the role of the default gateway in routing?
a)
a) It determines the best path to a remote destination.
b)
b) It provides interconnections between local hosts on the local network.
c)
c) It forwards packets between the local network and remote networks.
d)
d) It advertises the local network address to all devices on the network.
22.
What happens if there is no default gateway configured on a network?
a)
a) Hosts on the network cannot communicate with each other
b)
b) Hosts on the network cannot access the internet or other remote networks
c)
c) Traffic within the local network will be slower
d)
d) The network becomes vulnerable to security breaches
23.
What is the purpose of a default route in a host's routing table?
a)
a) To route traffic within the local network
b)
b) To forward traffic to the default gateway
c)
c) To block incoming traffic from remote networks
d)
d) To assign IP addresses to other hosts on the network
24.
How is the default gateway address typically obtained in IPv4 and IPv6?
a)
a) It is manually configured on the host's network interface
b)
b) It is dynamically assigned by the router using DHCP
c)
c) It is advertised by the router through routing protocols
d)
d) It is obtained from the local DNS server
25.
What does a router do when a packet arrives on one of its interfaces?
a)
a) It immediately sends the packet to the destination host.
b)
b) It examines the source IP address of the packet and updates its routing table.
c)
c) It examines the destination IP address of the packet and searches its routing table to determine where to forward the packet.
d)
d) It broadcasts the packet to all devices on the network.
26.
What are the entries in a router's routing table called?
a)
a) Route entries
b)
b) Network addresses
c)
c) Destination IP addresses
d)
d) Forwarding packets
27.
Which type of route entry represents the router interfaces that are directly connected to network segments?
a)
a) Remote networks
b)
b) Default route
c)
c) Directly-connected networks
d)
d) Dynamic routes
28.
How does a router learn about remote networks to include in its routing table?
a)
a) By manually entering static routes
b)
b) By configuring default routes
c)
c) By exchanging route information using a dynamic routing protocol
d)
d) By forwarding all packets to the default gateway
29.
What is a characteristic of static routes?
a)
a) They are automatically updated when there is a change in the network topology.
b)
b) They are configured dynamically using a routing protocol.
c)
c) They require manual configuration by the administrator.
d)
d) They are suitable for large networks with redundant links.
30.
When is static routing typically used?
a)
a) In networks with dynamic routing protocols.
b)
b) In large networks with redundant links.
c)
c) In networks with frequent changes in the network topology.
d)
d) In small networks with few or no redundant links.
31.
Which statement is true about dynamic routing protocols?
a)
a) They require manual configuration by the network administrator.
b)
b) They do not automatically update routing tables in response to topology changes.
c)
c) They allow routers to automatically learn about remote networks and share routing information.
d)
d) They are only used in small networks with few routers.
32.
What happens when there is a change in the network topology with dynamic routing protocols?
a)
a) Routers automatically adjust and find a new best path.
b)
b) The network administrator needs to manually reconfigure the routing tables.
c)
c) Routers stop exchanging routing information with each other.
d)
d) The routers become unable to communicate with remote networks.
33.
What does the code "C" indicate in the routing table entry?
a)
a) The route was learned dynamically from the OSPF routing protocol.
b)
b) The route is a directly connected network.
c)
c) The route is a static route manually configured by an administrator.
d)
d) The route is a default route.
34.
What does the code "S*" indicate in the routing table entry?
a)
a) The route was learned dynamically from the OSPF routing protocol.
b)
b) The route is a directly connected network.
c)
c) The route is a static route manually configured by an administrator.
d)
d) The route is a default route.
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