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WorksheetsCCNA-Mid-Exam-Batch-11th
Total questions: 50
Worksheet time: 25mins
Which type of network covers the largest geographical area?
LAN
MAN
WAN
PAN
In a star topology, the central device is usually
Switch
Router
Hub
Repeater
Which of the following is a point-to-point network example?
Ethernet LAN
Serial link between two routers
Wi-Fi network in an office
Token Ring
Which device connects different network paths in different subnets?
Hub
Switch
Router
Repeater
How many bits are in a MAC address?
32
48
64
128
What is the primary purpose of a MAC address?
Identify a network layer device
Identify a physical device on a LAN
Assign IP addresses
Provide routing information
Which type of IP address can change over time?
Static IP
Dynamic IP
Public IP
Private IP
The first 24 bits of a MAC address are called:
OUI (Organizationally Unique Identifier)
NIC code
Device Serial Number
IP header
Class C default subnet mask is:
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.255
Class A IP addresses range from:
1.0.0.0 – 126.255.255.255
128.0.0.0 – 191.255.255.255
192.0.0.0 – 223.255.255.255
224.0.0.0 – 239.255.255.255
How many usable hosts in a /29 subnet?
6
8
14
30
If you have 255.255.255.192 subnet mask, what is the block size?
32
64
128
256
A /26 subnet mask supports how many usable IP addresses?
62
64
30
32
The formula for number of subnets is
2^n – 2
2^n
2^h – 2
2^n – 1
In subnetting, the borrowed bits come from:
Host portion
Network portion
MAC address
VLAN ID
A /30 subnet is commonly used for
LAN segments
Point-to-point links
Wireless networks
Broadcast networks
Which OSI layer is responsible for encryption?
Application
Session
Presentation
Transport
TCP works at which OSI layer?
Network
Data Link
Transport
Session
IP address belongs to which OSI layer?
Data Link
Network
Transport
Session
Which OSI layer is responsible for MAC addresses?
Data Link
Network
Transport
Physical
Command to configure a static route in Cisco IOS
ip static-route
ip route [destination] [mask] [next-hop]
route add [destination] [mask] [gateway]
set route [destination]
Static routes are best used for
Large, complex networks
Small, stable networks
Networks with frequent topology changes
Internet routing
What happens if no route exists for a destination in a router's table?
Packet is broadcasted
Packet is dropped
Packet is sent to default gateway
Packet loops until TTL expires
Default route is also called
Zero route
Gateway of last resort
Loopback route
Static gateway
In a network with 3 routers, default route on Router A points to:
Itself
Router B
Router C
Internet
Default route in Cisco IOS syntax is
ip route 0.0.0.0 255.255.255.255 [next-hop]
ip route 0.0.0.0 0.0.0.0 [next-hop]
route default [gateway]
set default [gateway]
Which port does Telnet use by default?
21
22
23
25
To enable Telnet on a Cisco router, which command is used?
line console 0
line vty 0 4
enable telnet
set remote-access
Which is a major security risk of Telnet?
It uses encrypted traffic
It sends data in plain text
It uses high bandwidth
It cannot connect to Cisco devices
VLANs are used to
Increase network speed
Segment a network logically
Replace routers
Provide wireless access
Which command assigns a VLAN to a switch port?
vlan assign [id]
switchport vlan [id]
switchport access vlan [id]
vlan access [id]
Inter-VLAN communication requires
Layer 2 switch
Layer 3 device
Hub
Repeater
In Router-on-a-Stick, which interface type is used on the router?
Loopback
Subinterface
Trunk interface
FastEthernet 0/0 only
An SVI allows a switch to
Route between VLANs
Have an IP address for management
Forward packets faster
Perform NAT
Which encapsulation protocols can be used for trunks?
PPP, HDLC
802.1Q, ISL
Frame Relay, MPLS
VTP, STP
Port security can be enabled on
Router interfaces
Switch access ports
Wireless APs only
Server NICs
Which violation mode shuts down the port?
Protect
Restrict
Shutdown
Trap
To set a password for Telnet, use:
password [pwd] in vty mode
telnet password [pwd]
enable secret [pwd]
login password [pwd]
The command login under line vty means:
Allow Telnet without password
Require authentication for Telnet
Enable console login only
Enable SSH login only
Which command shows VLANs configured on a switch?
show vlan brief
show vlan
vlan status
display vlan
In static routing, the next hop can be
IP address or interface
Only IP address
Only interface
Broadcast address
Which VLAN is the default VLAN on Cisco switches?
VLAN 0
VLAN 1
VLAN 99
VLAN 100
The OSI layer responsible for error detection:
Network
Data Link
Physical
Transport
Which type of IP is routable on the Internet?
Private IP
Public IP
APIPA IP
Loopback IP
How many usable hosts in /27 subnet?
30
32
62
64
Which protocol is preferred over Telnet for security?
FTP
HTTP
SSH
SNMP
Which OSI layer handles flow control?
Transport
Session
Network
Data Link
The command to configure trunk on a switch port:
switchport mode access
switchport mode trunk
switchport trunk enable
vlan trunk on
Which VLAN is used for management by default?
VLAN 10
VLAN 1
VLAN 100
VLAN 99
Which static route sends all unknown traffic to a specific IP?
Floating route
Default route
Summary route
Dynamic route
