WorksheetsEN 2-3
Total questions: 35
Worksheet time: 18mins
For a beta of 120, compute the collector current of the given circuit
2.26 mA
2.25 mA
2.24 mA
2.23 mA
Given VCC = 10 V, RC = 4.7 kΩ, RB = 250Ω, RE = 1.2 kΩ and β = 90 for the circuit shown, find:
(a) IB
(b) IC and
(c) VCE
IB = -11.91 uA, IC = 1.07 mA, VCE = 3.687 V
iB = -11.91 uA, IC = 1.07 mA, VCE = 3.688 V
B = -11.91 uA, IC = 1.07 mA, VCE = 3.689 V
B = -11.91 uA, IC = 1.07 mA, VCE = 3.690 V
Calculate the value of V6 and I5 for the circuit shown. Assume that β has a very large value.
V6 = -4.475 V and I5 = 0.965 mA
V6 = -4.475 V and I5 = 0.966 mA
V6 = -4.475 V and I5 = 0.967 mA
V6 = -4.475 V and I5 = 0.968 mA
Find V_2 if it assumes that the given circuit has a very large beta.
V_2 = -0.6 V
V_2 = -0.7 V
V_2 = -0.8 V
V_2 = -0.9 V
Find the value of VE, β, α, and VC for the given circuit if a measurement indicates that base voltage is -1.5V.4
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 3.7 V
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 3.8 V
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 3.9 V
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 4.0 V
For the JFET in the figure shown, VGS(off) = - 4V and IDSS = 12 mA, Determine the minimum value of VDD required to put the device in the constant-current region of operation.
VDD(min) = 10.71 V
VDD(min) = 10.72 V
VDD(min) = 10.73 V
VDD(min) = 10.74 V
The data sheet of a JFET gives the following information:
IDSS = 3 mA
VGS(off) = - 6V
gm (max) = 5,000 uS.
Determine the transconductance for VGS = -4V and find drain current ID at this point.
gm = 1.67 mS and ID = 0.33 mA
gm = 1.68 mS and ID = 0.33 mA
gm = 1.69 mS and ID = 0.33 mA
gm = 1.70 mS and ID = 0.33 mA
Calculate the transconductance of an n-channel MOSFET with the following parameters:
V_TN = 1 V
(1/2)u_nC_ox = 20 uA/V^2
W/L = 40
Assume the drain current is 1 mA.
gm = 1.81 mS
gm = 1.80 mS
gm = 1.79 ms
gm = 1.78 mS
Find ID for the given circuit:
k = 500uA/V^2
λ = 0.5/V
VTP = 1 V
ID = 218 uA
ID = 217 uA
ID = 216 uA
ID = 215 uA
What are the z parameters for the two-port network?
z_11 = 60 Ω, z_12 = 40 Ω, z_21 = 40 Ω, z_22 = 70 Ω
z_11 = 60 Ω, z_12 = 40 Ω, z_21 = 60 Ω, z_22 = 70 Ω
z_11 = 60 Ω, z_12 = 40 Ω, z_21 = 80 Ω, z_22 = 70 Ω
z_11 = 60 Ω, z_12 = 40 Ω, z_21 = 100 Ω, z_22 = 70 Ω
Find the y parameters for the network shown.
y_11 = 0.75 siemens, y_12 = -0.5 siemens, y_21 = -0.5 siemens, y_22 = 0.625 siemens
y_11 = 0.75 siemens, y_12 = -0.5 siemens, y_21 = -0.5 siemens, y_22 = 0.630 siemens
y_11 = 0.75 siemens, y_12 = -0.5 siemens, y_21 = -0.5 siemens, y_22 = 0.635 siemens
y_11 = 0.75 siemens, y_12 = -0.5 siemens, y_21 = -0.5 siemens, y_22 = 0.640 siemens
Obtain the hybrid parameters of the given figure.
h_11 = 4 Ω, h_12 = 2/3 Ω, h_21 = -2 Ω, h_22 = 1/9 siemens
h_11 = 4 Ω, h_12 = 2/3 Ω, h_21 = -4 Ω, h_22 = 1/9 siemens
h_11 = 4 Ω, h_12 = 2/3 Ω, h_21 = -6 Ω, h_22 = 1/9 siemens
h_11 = 4 Ω, h_12 = 2/3 Ω, h_21 = -8 Ω, h_22 = 1/9 siemens
What is the purpose of the ping command?
share routing information with a neighbor router
transmit user data when buffers are full
test connectivity at layer 3
test the protocol stack
What is the purpose of a trace command?
explore packet routing information
test connectivity
determine the path packet
transmit user data when buffer is full
How long is an IPv6 address?
32 bits
128 bytes
64 bits
128 bits
What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global internet?
NAT
Static
Dynamic
PAT
What are the two main types of access control lists (ACLs)?
1. Standard
2. IEEE
3. Extended
4. Specialized
1 and 3
2 and 4
3 and 4
1 and 2
What command is used to create a backup configuration in network gears?
copy running backup
copy running-config startup-config
config mem
wr mem
You have 10 users plugged into a hub running 10 Mbps half-duplex. There is a server connected to the switch running 10 Mbps half-duplex as well. How much bandwidth does each host have to the server?
100 kbps
1 Mbps
2 Mbps
10 Mbps
Which WLAN IEEE specification allows up to 54 Mbps at 2.4 GHz?
A
B
G
N
Which of the following is the valid host range for the subnet on which the IP address 192.168.168.180 255.255.255.192 resides?
192.168.168.129-190
192.168.168.129-191
192.168.168.129-190
192.168.168.129-192
To back up an IOS, what command will you use?
back up IOS disk
copy IOS tftp
copy tftp flash
copy flash tftp
Identify the characteristics regarding MAC addresses?
contains a network portion and host portion
assigned by the system administrator
48 bits long containing vendor code and serial number
layer 3 address
Which of the following commands will allow you to set your Telnet password on a Cisco router?
line telnet 0 4
line aux 0 4
line vty 0 4
line con 0
Which protocol does DHCP use at the Transport layer?
IP
TCP
UDP
ARP
Which command is used to determine if an IP access list is enabled on a particular interface?
show access-lists
show interface
show ip interface
show interface access-lists
Where is a hub specified in the OSI model?
Session layer
Physical layer
Data Link layer
Application layer
What does the passive command provide to dynamic routing protocols?
Stops an interface from sending or receiving periodic dynamic updates
Stops an interface from sending periodic dynamic updates but not from receiving updates
Stops the router from receiving any dynamic updates.
Stops the router from sending any dynamic updates
Which protocol is used to send a destination network unknown message back to originating hosts?
TCP
ARP
ICMP
BootP
How often are BPDUs sent from a layer 2 device?
Never
Every 2 seconds
Every 10 minutes
Every 30 seconds
How many broadcast domains are created when you segment a network with a 12-port switch?
1
2
5
12
What does the command routerA(config)#line cons 0 allow you to perform next?
Set the Telnet password.
Shut down the router.
Set your console password.
Disable console connections.
Which router command allows you to view the entire contents of all access lists?
show all access-lists
show access-lists
show ip interface
show interface
Which class of IP address has the most host addresses available by default?
A
B
C
A and B
In a network with dozens of switches, how many root bridges would you have?
1
2
5
12
